Like most others, I have more than a few but here are the top ones.....

People who sing with the radio, stereo or at concerts. I didn't pay for a stereo or concert tickets to hear them over the person I went to listen to

Bratty kids who seem to be in the majority anymore. Where are the parents and why don't they teach these kids some manners

At work clients who call and say "If it wasn't for me you wouldn't have a job" and "I pay your salary

People who blame the poor quality of education on the teachers. The parents need to accept much of the blame for the problems in schools today because they don't teach their kids and respect for authority and when a problem occurs it's never their kid. Parents and kids don't seem to appreciate the educational opportunities available today. Kids are never taught a love of learning

Child abusers

Animal abusers

Hunters

People who constantly complain about the weather or anything else they can think of

People who ask you a question then give you an argument when you give an answer