I'm currently having an internal battle of wills about the leftover (stuffed crust, I might add) pizza in my fridge. The reason? It's almost 3AM in the morning. That still doesn't negate the fact that I'm hungry. Or that I was hungry three hours ago and ignored the pizza slices then. Or that I'm not sleepy. Or all the pushups/squats I'll think I'll have to do after the fact.
Really it all boils down to this thought: life is meant to be lived to the fullest - eat the pizza.