Jump

[uk666]

Jump

Two blondes were playing with a frog.

They taught it to jump on command, when they said "Jump!" it leaped forwards. 

They removed one rear leg and said "Jump!" The frog leaped forwards. 

They removed the other rear leg and said "Jump!" but nothing happened. 

After much discussion they concluded that if you remove both rear legs from a frog, it becomes deaf.