This is why we have uncles

Uncle Mike just taught Zachary how to give (and receive) wet willies.

That would be where you lick your finger and stick it into someone else's ear.

While shrieking hysterically with laughter. That part, it appears, is key.

Thanks Uncle Mike. You were right. It *is* the perfect bedtime game.

Luckily Mommy introduced the crucial rule "This is a special game JUST FOR UNCLES".