Once I met this guy who pushed 'I'm sorry' over and over while intentionally not doing anything until the very last second (so called 'afk trick', hoping that the opponent would be impatient and concede, giving him a free win by being a jerk).
I was pissed when I realized what was happening, but fortunately I wasn't in a hurry (watching some recorded TV show in the background) so I just waited for my turn and played my cards patiently. By turn 4 or so he realized that I wasn't going to leave, so he started seriously playing his cards (and not give me an easy win) and stopped stalling. Right after he did that, I suddenly thought of this great idea (of course)! So when it's my turn, I played all my cards/attacks, pushed 'I'm sorry' a few times and just leave him hanging until the fuse timer goes out and he gets his turn. He ended up conceding and give me the win soon after :biggrin: