What is a one-sentence summary of the following article?
Don’t post negative, rude, or disparaging comments about other people. If you see someone else making those kinds of posts, don’t share or like them. Avoid participating in hurtful gossip about others, even if it’s over private messaging. Be sure to make your settings safe by only letting your known friends see your account and interact with you. Avoid disclosing any private information on your public profile such as where you live or what your phone number is. Make all of your posts, contacts, and information private and unable to be seen by anyone who is not your friend on Facebook to protect your identity and information.  Some people choose their display name by only disclosing their first and middle names instead of including their last names. Even if your account is set to private, think carefully before you post something. Consider how you might feel about the post ten years from now. . If you're unhappy using your Facebook account or you feel like events on Facebook are out of control, consider deleting your Facebook account. You can always open a new account when you're feeling stronger. If Facebook is causing you more headache than connection, consider deleting your account. That way, nobody can contact you or harass you on Facebook and you will be completely removed from it.

Summary:
Set a good example. Make your Facebook account as private as possible. Close your Facebook account