Three guys enter a disabled swimming contest. The first has no 
arms. The second no legs and the third has no body, just a 
head. They all line up, the whistle blows and "splash" they're all 
in the pool.

The guy with no arms takes the lead instantly but the guy with 
no legs is closing fast. The head of course sank straight to the 
bottom.

Ten lengths later and the guy with no legs finishes first. He can 
still see bubbles coming from the bottom of the pool,so he 
decides he had better dive down to rescue him.

He picks up the head, swims back up to the surface and 
places the head at the side of the pool, where-upon the head 
starts coughing and spluttering.

Eventually the head catches his breath and shouts: "Three 
years I've spent learning to swim with my fucking ears, then two 
minutes before the whistle, some asshole puts a swimming cap 
on me!"