A Jamaican and his wife are traveling by car from Key West to Boston. After almost twenty-four hours on the road, they're too tired to continue, and they decide to stop for a rest. They stop at a nice hotel and take a room, but they only plan to sleep for four hours and then get back on the road. When they check out four hours later, the desk clerk hands them a bill for $350.
 
The Jamaican explodes and demands to know why the charge is so high. He tells the clerk although it's a nice hotel, the rooms certainly aren't worth $350. When the clerk tells him $350 is the standard rate, the Jamaican insists on speaking to the Manager.
 
The Manager appears, listens to the Jamaican, and then explains that the hotel has an Olympic- sized pool and a huge conference center that were available for the Jamaican and wife to use.
 
'But we didn't use them', the Jamaican complains.  
 
'Well, they are here, and you could have,' explains the Manager.
 
The Manager goes on to explain they could have taken in one of the shows for which the hotel is famous. 'The best entertainers from New York, Hollywood and Las Vegas perform here,' the Manager says.
 
'But we didn't go to any of those shows,' complains the Jamaican again.
 
'Well, we have them, and you could have', the Manager replies. No matter what facility the Manager mentions, the Jamaican replies, 'But we didn't use it!'
 
The Manager is unmoved, and eventually the Jamaican gives up and agrees to pay. He writes a check and gives it to the Manager. The Manager is surprised when he looks at the check. 'But sir,' he says, 'this check is only made out for $100.'
 
'That's right,' says the Jamaican. 'I charged you $250 for sleeping with my wife.'
 
'But I didn't!' exclaims the Manager.
 
'Well,' the Jamaican replies, 'she was here, and you could have.'