[DoubleTwentyOne]

I would like to start off by stating a very oft-overlooked fact:
Quads a.k.a. Four-of-a-kind is a nearly unbeatable hand in almost all cases...
Therefore, never fold any hand that can potentially flop quads...especially if your cards are not paired...you now have the added advantage of being able to flop any 1 of 2 different four-of-a-kinds. As most people will surely agree, when you flop a hand as well disguised as quads, you will surely receive a nice payoff...