A MAN WALKS INTO A PET SHOP LOOKING TO BUY A DOG.
OWNER: Good morning sir! Can i help you?
MAN: Yes i'm thinking of buying a dog.
OWNER: Well you've come to the right place, we have quite a selection just now...do you know what breed of dog you would like?
MAN: Yes! I'd like a labrador.
OWNER: Good choice sir, they're very friendly, easy to train...
MAN: I know, plus you never know when you might go blind!