At least, we think it was a banana

[[A publisher was found lying down in his office. This would not have been unusual, but he was not merely sleeping, but was unconscious.

A banana peel was found on his face.

It's obvious Watson, said the detective, this man was attacked by a banana.

But are you sure it was a banana, and only a banana? replied Watson.

Well, there is always the chance the banana might have had an eggplant as an accomplice, replied the detective.