The Snail

So this guy is at home watching TV
he's in a bad mood
there's a knock at the door, so he goes to answer it
it's a snail
the snail says: "Hello, I would like to talk with you about magazine subscriptions."
the guy gets all pissed off
"Get out of here!!"
with that, he kicks the snail off his doorstep and slams the door
two years later
there's a knock at the door
the guy goes over to the door and answers it
it's the snail
who says "what the f&*k was that about!?"