a. at least double your money, then stop
if i wanted to double my money, i would just go all in 2x on dice, and be done with it... but there is no fun in that.
so it really depends on how much i'm starting with, if it's a $10 depo just for fun, i try to at least 10x it. if it's a $500 depo, damn sure i'm stopping if i'm up 2x.
b. you only stop when you have lost all your bankroll money and then blame the casino?
no no, i blame my dumb self for gambling in the first place knowing the house always wins, lol.
c. or you are a superstitions gambler, when you have signs like losing 3 straight in a row, then you quit because you know that you're having a bad luck
nah, i only trust the numbers, and each bet result is independent of past and future bets.
d. you stop when you are at least break even
if i'm up a lot but start losing back down to my starting balance, then i'll stop as chances are i'll just end up running it down to zero.
I didn't include chasing your losses as obviously you might to continue.
i learned my lesson doing that a few years back, so i never do it anymore.