I came with a girl on the cartoon "House" (6+). The situation: the heroine locked the alien (let's drop the details where and how), and he in every way captures her about liberation. It does not surrender, and then the following dialogue occurs:

If you don’t let me go, I’ll shoot you in the eye with a laser. We are so capable! A Alien is screaming.
If you shoot a laser out of your eye, I’ll blow up your skull. A girl answers him.
You can’t explode a skull.
As we can! Just blowing up the skull is immoral, so we hide this ability, the girl explains.

I lean to my companion and whisper to her ear: "In children's cartoons and movies often whisper two-dimensional jokes, the hidden meaning of which is understood only by adults, so that they also have something to have fun while watching. It was a joke ". The reaction exceeded expectations. and :)