This one is more serious, but I'll make another list on the people I like another week.
1. Bullies
There are bullies everywhere. We think they fade away or mature after high school, but no. There are still even instances in college where students will place backpacks on chairs to keep someone from sitting at the same table. People who should be acting like mature adults (they legally are) who verbally or mentally abuse others on a daily basis.
2. Backstabbers
Those who go behind your back for their own personal gain. There can be many reasons, but in the end it's always to purposefully harm you.
3. Watchers
Those that just stand and do nothing as they watch others have pain inflicted upon them. You might not even have a bad intention, but if you don't react to help someone, you are simply a watcher or observer. And you are just as guilty as anyone actively causing a problem.
4. Know-It-Alls
Good gosh! These get me worked up. Funny thing is, most of these types of people end up being conspiracy theorists.
5. Guilt Trippers
After a while the constant reminders or the constant repeats of minor offenses get to be waaaaaaayyyyyy too much to handle. There's no need for that. No need!
6. "Um Actually..."
The sudo-intellectual, self-declared expert. This almost falls under the know it alls, but they "actually" know something. It's just extremely annoying when they explain things.
7. Gossipers
Because not everything they say is true. In fact, 90 percent of everything they say is like a bad telephone game where everyone hears something slightly different and eventually the end story is nothing like the original.
8. "Not A B*tch, Just Being Honest."
No, you're just using the word "honest" to excuse yourself from taking responsibility for being rude to people.