I am a gambler, but i don't have any idea what is the actually amount which i have lost in gambling, but i think it is near about 3 to 5 BTC.
In my gambling period, sometime i was thinking to left it forever, but on the next day whenever i was playing by chance i am winning. I have win from gambling near about 2 BTC. So i can say it easily, Gambling never give me a biggest loss.