re: Poker & leaving right after winning
When I had first started playing, these players bugged me a lot. After playing a few hundred thousand hands, I've realized that there's always another player ready to sit down and lose some money back to me. I guess it would bother me more live. But, I almost never see it live. I thought someone did it once, on a casino "cruise." Kid bought in, doubled up, and left after 20 minutes of play (complaining he was seasick). I figured he was just taking the money and running.
Later, I took a bathroom break and spotted him puking off the railing into the sea. Guess he really couldn't handle the motion.