Bilateral Thinking Puzzles

Q: Two men went into a restaurant. They both ordered the same dish from the menu. After they tasted it, one of the men went outside the restaurant and shot himself. Why?

A: He had been outside in a storm and had been thoroughly soaked, and had come inside to warm himself by the fire. He was wearing a leather collar, and as the collar dried, it shrank, strangling him.

Another

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