Kid: Mommy can I take a shower with you?
Mom: Fine. But don't look up and don't look down.
When there in the shower the kid looks up and says:
Kid: Mommy what are those?
Mom: These are the headlights.
Kid looks down and says:
Kid: What's that?
Mom: That's the garage.
The next day the kid takes a shower with his dad.
The kid looks down and says:
Kid: Whats that?
Dad: Thats the car.
The next day the kid goes into his parents room and says:
Kid: Mommy turn on the headlights, dady park the car in the garage.