That reminds me, I've got a joke:
Why don't blind men skydive? Cos it scares the shit out of the dog..
That is from the "Status Shuffle" on facebook.
There's a slight variation on this one, which you might get some fun out of, Diane...
Blind man's chatting to astonished barman about his skydiving hobby. Barman asks how he knows when to brace himself for the landing. "The guide dog's lead goes slack." says the blind man.
If you want to make it a routine, you start with the tale of the man who enters a bar with a cocker spaniel on a lead.
Barman says "Sorry - we don't allow dogs in here."
Man says, "But he's my guide dog."
Barman replies, "Don't take me for a fool, pal - I may be just a barman, but even I know that guide dogs are either Labradors, Golden Retreivers or Alsations."
"Oh, s***!", says the man. "What have they given
me?"
Then on to the conversation about sky-diving...etc.