A) Disagree with irksome people - purely because they are irksome? Not necessarily because they are wrong but I just find them annoying...
B) Quash the overly-enthusiastic endlessly cheerful types by being cynical? Let's face it, nobody should ever be endlessly chirpy. That's just Not On and you are annoying.
C) Remove items that people leave at their arses and put them in a "safe place" - if it's precious or important then I assume you wouldn't just leave it lying at your arse?
AIBU and a right Old Caaaaah?