It's bad to eat too much bacon
Jimmy is quite a large man and is at an all you can eat breakfast buffer.
Jimmy wants to get his money's worth out of the meal.
Jimmy makes sure to try all the variety of foods available in the buffets, so he can say he tried everything .
Jimmy decides to eat as much bacon as he can as he knows it is the likely the most expensive food stuff in the buffet.
Jimmy feels satisfied with his decision to get the buffet and his consumption doesn't interfere with the availability of items for others.
Jimmy doesn't leave bacon for other customers that may have wanted some and likely did not do any favors to his own health.