A teenage boy tells his father, "Dad, there's trouble with the car, it has water in the carburetor."
The father looks confused and says, "That's ridiculous!"
But the son insists. "I tell you, the car has water in the carburetor."
His father, is still skeptical. "You don't even know what a carburetor is.... but I will check it out. Where is the car?"
"In the pool," replies the son.