If you have your choice and are looking to interact with your rat or introduce a new rat to your current rats, pick one that is under 6 months old. After this age, they begin to develop their social behaviour and if they live in the wild or without much human contact, that is what they’ll be used to.. That said, do not overlook older rats that are in need of a new home! All rats are wonderful, some just may take longer to be comfortable in their new surroundings. Older rats can be socialized with the same methods but you’ll need to be more patient as it will take them longer to trust you. Rats will come to trust your hands if they associate them with food. Start by hold the food with your fingertips. After you’ve fed it from your fingertips a few times, hold the food in the palm of your hand and let the rat sit in your hand as you eat. Eventually, it’ll instinctively walk onto your hand anytime you hold it out. Rats, much like dogs, have the ability to differentiate voice patterns. Try to repeatedly say its name softly over time. It may learn to remember its name and come to you when you say it..Remember to reward your rat for coming to you when called with a small piece of a snack. Because a rat’s eardrums are so small, it won’t be able to differentiate sounds that are too loud. Try whispering with your mouth close to its ear. Never squeeze your rat and avoid restraining it for more than a few seconds at a time. Keep your hands open and let the rat move around at will. By spending time in your hands, your rat will get used to your scent and bond with you.  Pick up your rat by placing your hand under its belly. Try to use two hands when picking it up. Putting your rat on its back so that its belly is exposed is a sign of dominance and can be stressful to your rat, especially when there is no real reason at that particular moment for you to be asserting dominance. Once it’s used to being held, try to simply hold your hand out and let the rat come to you.
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One-sentence summary -- Like dogs and cats, rats are much easier to socialize when they’re younger. Offer treats from your hand. Speak softly. Hold your rat correctly.

Q: To get Luigi, you'll need to have Mario unlocked already. There's no exception to this rule — you simply can't get Luigi as Wario, unless you do a glitch, since he's the last character you can unlock. Don't forget to switch to Mario before starting this process if you haven't already done so. To unlock Mario, you'll need to have eight stars. Jump into the Mario portrait in the room connected to the minigame room as Yoshi, then battle the Goomboss in the level you're transported to. Once you defeat him, you'll get the Mario key. As Mario, head to the castle's courtyard. From the castle foyer, this is located through the plain wooden doors and down the long hallway. You'll know you're going the right way if you see a Boo (ghost) in the hallway. Once you're in the backyard, start killing Boos until one drops a metal cage. Then after you've already beaten the Big Boo, bump into the cage to enter Big Boo's Haunt. Note that you'll need to collect the first star in Big Boo's Haunt before you can get Luigi. The stairway to the second floor of the mansion (where the entrance to Luigi's level is located) only appears from the second star onward. Select the second star (or, if you have access to them, one of the stars after it). When the level starts, run into the mansion in front of you. Climb the staircase to the second floor and enter the door on the far right. You should enter a room with a raised wooden platform and a red "?" block. Break open the red "?" block. Mario should swell up like a balloon and start to float toward the ceiling. Float into the enclave and head through the door. Note that you can press the "R" button on the DS to cancel out of the floating move. In the Nintendo 64 version, getting up here proved quite challenging — many first-timers weren't aware of this door at first and had trouble getting to it once they found it. However, in the DS version, the balloon block makes  this much, much easier. In the next room, you should see a large portrait of Luigi. You know what to do — hop into the painting!
A: Have Mario unlocked. Enter Big Boo's Haunt. Head to the second story of the mansion. Make your way to the attic. Jump into the Luigi portrait.

Article: The American Kennel Club (AKC) describes the temperament of the Doberman as energetic, determined, watchful, loyal, and fearless. This goes some way to describe the alert intelligence of the Doberman. When channeled correctly through good training, their energy and willfulness make them a potent working dog and a great pet. Due to the size and power of the Doberman, if its handler is not knowledgeable and confident, the dog has the potential to become dangerous. The Doberman is not a suitable breed for a first time owner. Indeed, the ideal owner should be an experienced dog owner who is prepared to devote time and attention to the correct training and exercising (both mental and physical) of their dog. If this happens then a Doberman is likely to be a wonderful, attentive, and loyal companion who is devoted to their owner.  In the wrong hands a Doberman (through no fault of its own) could become either fearful (and therefore aggressive in order to protect himself from perceived threats) or territorially aggressive. Neither is a desirable scenario an out of control doberman is a danger to life and limb. A well-trained Doberman can make a great family dog, but supervision is essential around small children as this dog is very energetic and if a small child gets in the way, the dog may push them over. Being a large dog, and an athletic one at that, Dobermans need adequate space to move around. Apartment living is not a great option for a dog this active and large unless you will give it enough exercise for your dog to spill out all of its energy. And of course, make sure your land lord allows dog, do not try to hide a dog, ever! Indeed, the Doberman also needs access to a decent sized yard, in order to stretch its legs between walks. This yard should also be fenced, as a Doberman may become defensive if a stranger wanders over its territory; keep in mind these dogs were specifically bred to protect. You should be prepared to devote at least 2 hours a day to exercising your Doberman, an hour in the morning and again in the evening. Their working origins and athleticism mean they have a high requirement for exercise. You should weigh the costs associated with keeping any large dog. You need to provide a good quality food, since cheap foods bulked up with cereal may ferment in the dog's gut and predispose it to bloat. Obviously good quality foods are more expensive than that cheap food, and the cost of feeding the required amount can be considered. Also, deworming and anti-parasite treatments are going to cost more than for a small dog. The Doberman should stand around 24 - 28 inches tall at the shoulders, with males being taller than females. The classic color is black with tan markings, but red, blue, and fawn are also permissible by the AKC. The Doberman weighs 60 - 80 lbs and the average lifespan is 10 - 13 years. In the US the ears are usually cropped, while in the UK this procedure is considered a cosmetic mutilation and frowned upon.
Question: What is a summary of what this article is about?
Decide whether you like the temperament of a Doberman. Understand the need for thorough and consistent training with a Doberman. Decide whether your home and yard are big enough for a large dog. Make a significant time commitment. Calculate the cost of owning a Doberman. Understand what a full-grown Doberman will look like.