A blonde motorist was two hours from Sydney when she was flagged down by a man whose truck had broken down. The man walked up to the blonde's car and asked, "Are you going to Sydney?"

"Sure," answered the blonde, "do you need a lift?"

"Not for me. I'll be spending the next three hours fixing my truck. My problem is I've got two chimpanzees in the back which have to be delivered to Taronga Park Zoo. They're a bit stressed already so I don't want to keep them on the road all day. Could you possibly take them to the zoo for me? I'll give you fifty dollars for your trouble."

"I'd be happy to," said the blonde.

So the two chimpanzees were ushered into the back seat of the blonde's car and carefully strapped into their seat belts. Off they went.

Five hours later, the truck driver was driving through the heart of Sydney when suddenly he was horrified. There was the blonde walking down the street and holding hands with the two chimps, much to the amusement of the crowd.

With a screech of brakes he pulled off the road and ran over to the blonde.
"What the hell are you doing here?" he demanded, "I gave you fifty dollars to take these chimpanzees to the zoo."

"Yes, I know you did," said the blonde, "but just as we arrived it looked like it was going to rain so we decided to see a movie instead."