If you lose your set limit and cannot bear to watch others gamble, leave.

Four of a Kind is a hand that contains of four cards of the same rank. The hand with the highest rank of four-of-a-kind beats other four-of-a-kind hands. If there are many wild cards, as used in some game variants, there could be two four-of-a-kind hands with the same rank. In this case, the hand with the higher ranking fifth card wins. This rule applies to hands that tie, such as a pair or two pairs. Dead heats split the pot.

The safest way to double your money is to fold it over once and put it in your pocket. ~Kin Hubbard