Ungratefuls, who will forget everything you have done for them on a single mistake. They will usually have never done anything for you, and if they did they would make a big deal out of it and remind you of it whenever they saw you.
Hypocrites, people who will make it look like you are the best person ever when you are around, and will agree with every word you say just to get some benefit out of you. Then when they meet someone else who has more benefits, they will completely forget you and treat you like vermin.
Superheroes, people who think they are the savior of all humanity, and if it were not for them we we would still be hitting two stones together to make fire. They enjoy boasting alot and despise their competition. If they think of something, it must be right. Superheroes never make mistakes.
Taxis, and if you have been following along with my blog for some time, you'll know what I'm talking about. Sure, there are alot of good taxi drivers doing their job for God and the country. But there are some taxis that are the scum of earth. I've wrote about them before.