Many years ago I heard a story about a linedancer - one of the best in the world. 
The interesting thing about this linedancer was that whenever someone was to 
talk to him - like asking him if he wanted something to drink (while 
he was dancing on the line) he would fall down. 

No-one could understand why - until when he died and they realized he
had a very different brain structure.

Could you find the original story somewhere?