Exchange

https://commons.wikimedia.org/wiki/File:Stan_Laurel_c1920.jpg

One day Stan Laurel visited a stationery store.

The clerk seemed to recognize him.

“Say,” he said. “Aren’t you –”

Laurel said, “Oliver Hardy.”

“Right,” said the clerk. “Say, whatever happened to Laurel?”

Laurel said, “He went balmy.”