I say fuck 'em, it's not like they'd apologize to you if they were the ones being rude or nasty. I've tried apologizing to people for things I say and do before. They don't accept it, so I've long since stopped. They can all blow it out their tailpipes. Most people aren't worth the mud on the bottom of your boots, so don't sweat it.
I've personally never seen you say or do anything that could even be considered worth apologizing for, anyway.
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