Nail that Snail!

Snails demand a somewhat different technique because, whereas the slug is an all-out snail, the snail can be in and out at the same time—like a bad tenant when the rent collector calls. So the snail-stalker is advised to rap smartly on the back door of the snail's house and then run round to the front door and chalk “to let” on it. When the snail returns to the front and sees “to let” on the door he naturally concludes that he is in the wrong house, and immediately vacates. The snail hunter then seals the shell with chewing gum and leaves the snail to perish from exposure.