[A CA Guy]

Or better yet, put a sign at the bottom of the tree saying beware of the poisons.

[ctdonath2]

A farmer was proud of his watermelon crop. People started stealing his watermelons. He put up a sign saying “one of these watermelons is poisoned”. The stealing stopped. He went and looked at his sign to revel in his cleverness. Then he noticed the “one” was crossed out and replaced with the word “two”.