when you deposit money into a gambling site to play, for example, x amount, how many "x" is enough for you to cash out? do you have a specific amount that makes it worth it for you, or do you just go with your gut?

for example, when i reach about twice the amount i deposited, i usually find it enough and walk away without pushing my luck too much. doubling your money in gambling isn’t that easy anyway. i think most people have a similar goal around this level.

and lastly, do you ever cash out while in the red? when things go bad, do you sometimes take out less than your initial deposit, thinking, "it's better than nothing"?