My buddy comes up with 'systems' all the time. He doesn't play roulette anymore (thank god), but he still tries to come up with some system to always win at poker. I tell him the same thing every time: Systems are for gamblers.

Well, I'm in a bit of a slump right now, and maybe I need a break, but I really can't take one right now. My stamina is all but shot, so I figure I'll maybe play 4 hours max. A conversation with a very good player I know came to the conclusion that in a game with a max buy in, when you get to 5 or 6 buy ins, you should leave because you're just protecting your stack at that point. So I figure I'll end a session at 4 hours or 5 buyins.

That sounds like a system to me... Am I nuts?