A man went to the Police Station wishing to speak with the burglar who had broken into his house the night before.
"You"ll get your chance in court," said the sergeant.
"No, no no!" said the man. "I want to know how he got into the house without waking my wife. I"ve been trying to do that for years!"
Snails produce a colorless, sticky discharge that forms a protective carpet under them as they travel along. The discharge is so effective that they can crawl along the edge of a razor without cutting themselves.