Re: what ticks you off…
I knowwwwwwwwwwwww 
and this one;
You know those ATM machines in the banks, there are usually like 3 or 4 in a row and people queue up in a single line, often behind the machine in the center
So this other day during rush hour we were all lined up, about 5 or 6 persons, and this dude just walks in and stands by himself and as soon as a machine became available he walked up with his card in his hand 
This little old lady in front me was visibly pissed and told him “Sir you have to line up here, BEHIND us”
and this guy (with this innocent look on his face) “Oh - so this one line is for all 3 machines I thought you were all lined up for the machine in the middle”