Chess can be such an emotional game, when your intelligence is paired up against your opponent's.
It's great fun at times, but at other times, it seems like we get too sensitive. More so than, say, basketball or even billiards.
I'm asking because I recently faced an opponent on chess.com who, after I offered and he naively accepted a series of gambits, very rudely typed a chat message. Now, we've never even met or played before. And this is a game, is it not?
So my question is: is there chess etiquette somewhere?