A woman decided to give herself a big treat for

A woman decided to give herself a big treat for her 70th birthday by staying overnight in a really nice hotel.. When she checked out the next morning, the desk clerk handed her a bill for $250.00.
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She demanded to know why the charge was so high "I agree it's a nice hotel, but the rooms aren't worth $250..00 for just an overnight stay - I didn't even have breakfast!"
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The clerk told her that $250.00 is the 'standard rate,' and breakfast had been included had she wanted it.
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She insisted on speaking to the Manager. The Manager appeared and, forewarned by the desk clerk, announced: "This hotel has an Olympic-sized pool and a huge conference center which are available for use."
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"But I didn't use them."
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'Well, they are here, and you could have." He went on to explain that she could also have seen one of the in-hotel shows for which they were so famous."We have the best entertainers from the world over performing here."
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"But I didn't go to any of those shows.."
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"Well, we have them, and you could have."
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No matter what amenity the Manager mentioned, she replied, "But I didn't use it!" and the Manager countered with his standard response.
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After several minutes discussion, and with the Manager still unmoved, she decided to pay, wrote a check and gave it to him. The Manager was surprised when he looked at the check.
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"But Madam, this check is for only $50.00"
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"That's correct I charged you $200.00 for sleeping with me."
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"But I didn't!"
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"Well, too bad, I was here, and you could have."