This is Homer:

This is Homer on drugs:

This is a tennis ball:

Homer likes tennis balls. If one tennis ball is good, then more tennis balls must be better.

This is a bag of tennis balls:

This is Homer discovering the bag of tennis balls:

This is essentially Kelly deciding whether or not to be evil:

Evil won out on this particular day:

This is Homer trying to decide which tennis ball he should play with:

Sadly, the decision proved to be too difficult for Homer, and his head exploded and he died.

The End.