Bilateral Thinking Puzzles

Q: A man hails a taxi, gets in and gives the driver the destination address. The taxi sets out, but then the driver stops in a secluded place and the driver kills the man. Why?

A: The man was near a snowy cliff. He had triggered an avalanche.

Another

This is another thing that seemed funnier a third of the way into writing it, from the Surrealist. 19th August 2005.