What do you hate when your opponent does while playing chess?

me too

I have only one: when people don't start their games and let it auto-abort.

I've found ways that help me stay happy for basically everything else that ever annoyed me:
- letting time run out when losing -> award extra time when opponent is low (keeping a decent lead)
- spamming extra time -> I go to get a drink / snack
- thinking for a long time and then asking for a take-back -> don't respond to the take-back
- resigning when I just wanted to enjoy playing the crushing endgame -> finish the >8.0 pawn-advantage game against stockfish 3000 (... which I still manage to lose sometimes)
- forcing me to choose between a bad move and a draw by three-fold repetition -> offer a draw on the move before this happens, either the opponent avoids this or it will feel like I got what I wanted when I hit the 'claim draw' button.
- taking my pieces and checkmating me -> defending my pieces so I can take something back, and checkmate them first

I could explode when my opponent has lost his position/pieaces, then he is leaving the game instead of just-giving up.

@sjcjjoosten
Your right. I hate when people do that too.

Sometimes I have a strange mood that I play a peaceful move meaning that I don't attack anything just a developing move I play for balance draw you can say.. & in the other hand if in my opponent turn thinks am weak & attacks!! , well well!!
this means WAAAAR 😠.
🔸Beast mode activated
🔸Tsunami disaster activated
🔸Last stand day activated.
I'll rip his head out of his shoulder.

@MohammedElasha
Umm... People's heads don't grow on shoulders

I hate when my opponent wins

I hate if the opportunity is not playing and i need to abort always when that happens.

I hate it when they dirty flag me.