Wierd, how come I am the exact opposite.
When I won, I wanted to cash out and stop NOW. Even if it's $5-$10. The more I won, the more I want to stop. The only thing that stopped me from leaving is the wager requirement. It's common I'll just withdraw $5-$10 winning and my wife would laugh at me for that.
When I lost, I want to stop the bleeding NOW. It just pain me to see my bankroll going downhill nonstop. Again, the only thing that keep me going is the wager requirement. The more I loose, the more I want to stop. When I finally reached the WR, I'd grab what's left and cashin in nano-second. Surely I was pissed but at least I won't loose anymore.
When I go to land based casino, I would spare $20 per day on fully paid decus or Bonus poker. Again, I'd walk away with 10 more bucks or go bust trying. Maybe I am not a good gambler after all.
By the way, after a bad loosing streak I always want to go to Mac Donalds. Why? because working there at least I'll get a fixed $7 hourly rate.