We sometimes get into a situation where out session bankroll has diminished to a very small amount. In a case where one is playing a $10 minimum game (and there are no lesser minimum tables), should one keep on playing till entire session bankroll is gone or should we be playing that last shoe knowing you have lost the capacity to maintain your spread? Yes, it's probably possible to end up winning but to me it's like a hail Mary pass with a very minute chance of being succesful.

Are there guidelines out there of a minimum amount to play that last shoe?