I'm sure we've shared pet peeves before, but it's been long enough that we can totally justify sharing again.
DH just walked in the room while I was literally in the middle of a show, sat down and and said "mind if I change the channel?"
REALLY!?!? Just because I'm not watching Impractical Jokers or some show on TruTV doesn't mean it isn't worth watching.
He followed that question with "I mean you have this recording right? Because if so it shouldn't matter if I change it."

So there is my pet peeve for the night. TV hogs. Your turn.