I hate unreliable people.
I mean, they just really piss me off. I hate telling somebody something two weeks or more ahead, and then finding out that they can't do it three days before the certain even. What the fuck is that? And even worse if I call you my friend. Just, ugh, die or something. It's your fucking fault, but I'm the one who has to pay the penalty. I can't even imagine how you people will ever survive in the business world. I'll make sure to come spit on you when I see you in a cardboard box.
Don't complain about never being invited to anything or go anywhere and blame everything on your parents. When you are invited, you don't even try to go and act like you could care less.