Will you friend me on Facebook? Please? You don't mind if I don't know you right? Or if I'm your boss or like to friend everyone on the Internet right? Right?

Maybe you, dear user, should mind who you friend.

With more than 900 million users on Facebook, users are bound to run into a few types of people they wish they wish they would have never friended to begin with.

Friending some of these types may leave personal information at risk, while adding others will simply clog News Feeds, which might already be saturated with ads and unwanted updates.

To help avoid friending the wrong people, we've compiled a list of five types of Facebook users to never add as friends.

Is there a type of Facebook user you think people should avoid friending? Share your thoughts with us in the comments!

Loading Slideshow...

  • 1. Strangers

    You'd think this would be a no-brainer, but, apparently, quite a few Facebook users have no problem adding strangers as friends. According to a study <a href="http://arstechnica.com/tech-policy/2011/11/one-in-five-willing-to-make-facebook-friends-with-complete-strangers/" target="_hplink">released late last year</a>, about one in five users were willing to add a complete stranger as a friend on Facebook. If you'd really like to interact with people you don't actually know without exposing your personal information, consider adding <a href="https://www.facebook.com/about/subscribe" target="_hplink">Facebook's "Subscribe" button</a> to your Timeline; that way, you can let others view your public updates without having to add them as Facebook friends.

  • 2. People Who Like To Friend Everyone

    Probably not the best idea to friend those who you know like to add everyone they can as a friend on Facebook, including strangers. That can leave your personal information open for creeps to see, especially if your <a href="https://www.facebook.com/settings/?tab=privacy" target="_hplink">privacy settings</a> allow friends of friends to view certain info.

  • 3. Your Loved One's Exes

    Just plain awkward...Unless, of course, your current boyfriend or girlfriend is still really good friends with his or her ex and you have the will power to resist Facebook stalking them. But beware! Friending your loved one's ex may expose comments, pictures and more you'd rather not let them see.

  • 4. Your Boss

    Sure, everyone makes mistakes. But if you happen to post one of those "mistakes" on Facebook when you're friends with your boss, you may end up getting fired. <a href="http://www.huffingtonpost.com/2010/07/26/fired-over-facebook-posts_n_659170.html#s115707&title=Swiss_Woman_Caught" target="_hplink">These 13 people</a>, for example, were fired for mistakes they made on Facebook, which included everything from writing the wrong thing to posting offensive pictures. In this case, it's probably better to be safe than sorry.

  • 5. People Who Like To Advertise Everything

    It's bad enough seeing PR-type posts from people and companies that we don't even follow <a href="http://www.huffingtonpost.com/2012/02/29/new-facebook-ads_n_1311154.html" target="_hplink">on our News Feeds</a>, so why exacerbate that problem by following those who like to advertise everything? Whether they're an actual public relations rep, a budding musician who posts way too many videos or one of those people whose statuses look like "I ate Trix for breakfast this morning, lol" we we suggest staying away from these types. Unless of course you like that kind of thing.

  • How to Handle Awkward Facebook Friend Requests

    Learn how to handle awkward Facebook friend requests with these tips.