A guy has been traveling on business all day. He checks into a hotel and tells the man behind the desk he needs a single room for the night.
As the clerk fills out the paperwork the man sees this beautiful girl sitting in the lobby. He tells the clerk to wait while he disappears into the lobby. A few minutes later he comes back with the girl on his arm.
"Fancy meeting my wife here," he tells the clerk, "what a surprise, this is my wife and I’ll now need a double room for the night instead."
The next morning he comes down to settle the bill and finds it to be over $3,000.
"What’s the hell’s the meaning of this? I was only here one night," the man tells the clerk.
"Yes, but your wife has been here for 3 weeks," The clerk replies.