When to leave a table?

[PDosterM]

One thing a formula based on results can do for you is to compensate for an inability to distinguish between bad play and bad luck (or between good play and good luck). But it can’t be plus or minus the same number of bets (like plus or minus 30 big bets). It has to be something like “leave after you lose 20 big bets or win 40 big bets.” This would have the effect of having you play longer in favorable games than in unfavorable ones. Over enough games, the luck factor washes out and the game texture dominates.

I’m not recommending this, just pointing out that plus or minus the same amount accomplishes little.