Reading Funny Stuff

Here's a joke I got from a friend:

A guy goes to the shop late at night, when he gets there he sees the shopkeeper just about to lock up the shop, the guy says "Excuse me, the sign outside says you open for 24 hours", the shopkeeper replies, "Yeah, we open for 24 hours, just not in a row".

Don't know if you get it but I found it really funny!