The landlord of a pub, is just locking up, when theres a ring on the doorbell. He opens the door, and theres a snail sitting there.

What do you want?

asks the landlord.

The snail replies that he wants a drink.

Go away, were closed, and we dont serve snails anyway.

The snail pleads and pleads with the barman to give it a drink, at which the landlord gets fed up, picks the snail up, throws it as far as he can, and then slams the door shut.

….. Exactly one year later, hes locking up again, and theres a ring at the doorbell. The landlord opens the door, and looks down to see a snail sitting there.

What do you want says the landlord.

What did you do that for says the snail.