What gets you annoyed in a chess game?

A good experiment would be that they only could search cheaters for play and they will taste their own medicine!!!

When I lose in a winning position: I have mate-in-one and, suddenly, my opponent checkmates me!

I lose by one movement! :lol:

thinking, it makes my heads hurt

When i loose a queen.

People who accept my seek without looking at the variant, and then abort when they see it is one they don't like

I almost forgot - stupid forum posts make me angry!

A stalemate is one of the things that gets me really mad. I've just had the chance to checkmate, but I dropped the ball...

Losing a game having outplayed my opponent and missing a simple tactic - nothing worse!

I can deal with blunders, stalemates, or mate in 1 mouse slips. The only thing that makes me angry is getting a bad/uncomfortable position in the opening! I'm bad with openings... :'( That's why I'm better at 960!

I hate play with afraid against masters