Another thing that pisses me off: people who refuse to apologize when they should, or who only offer mealy-mouthed, equivocal, obviously insincere apologies.

"I'm sorry if you were offended..." Translation: "I'm not sure you were really offended. I think you might be faking it."

"I want to apologize to anyone who was hurt by my actions...." Translation: "...but I'm not sure such a person really exists. I certainly couldn't name one."

"I'm sorry that you were offended by my remarks...." Translation: "...but I'm not sorry I made them. I'm only sorry you heard them."

"My remarks were taken out of context...." Translation: "...and the proper context was: a room full of people who totally agree with me."

"I didn't mean.... What I really meant was...." Translation: "Let me take this opportunity to say something different but equally offensive." For example: "I didn't mean your haircut was ridiculous. All I meant was, it's too bad you didn't go to a licensed barbershop."

It occurs to me I have probably undermined my own position by making my examples too funny. In real life, they are seldom that funny.