Now That's Funny...I Don't Care Who You Are

Monday evening, Kevin came home from work and told Fletcher the following joke:
A scientist gets a frog, puts him on the ground and yells, "Jump, frog, jump."
The frog jumps four feet so the scientist writes down, "A frog with four legs jumps four feet."
The scientist cuts off one of the frog's legs.
The scientist puts him on the ground and yells, "Jump, frog, jump."
The frog jumps three feet so the scientist writes down, "A frog with three legs jumps three feet."
The scientist cuts off another one of the frog's legs.
The scientist puts him on the ground and yells, "Jump, frog, jump."
The frog jumps two feet so the scientist writes down, "A frog with two legs jumps two feet."
The scientist cuts off another one of the frog's legs.
The scientist puts him on the ground and yells, "Jump, frog, jump."
The frog jumps one foot so the scientist writes down, "A frog with one leg jumps one foot."
The scientist cuts off the last of the frog's legs.
The scientist puts him on the ground and yells, "Jump, frog, jump."
The frog just sits there so the scientist yells again, "Jump, frog, jump." Still nothing so the scientist yells even louder, "Jump, frog, jump." Nothing happens so the scientist writes down, "A frog with no legs is deaf."

Fletcher almost falls off the barstool from laughing so hard. He continues to laugh and then he retells the joke almost word for word (scary how he can do that).

He laughs again when he gets to the punchline.

I ask, "Fletcher, do you know what 'deaf' means?"

Fletcher says, "Um, no!"