There was this gas station trying to increase its sales, so the owner
put up a sign saying "Free Sex with Fill-up." Soon a customer pulled in,
filled his tank, and then asked for his free sex.
The owner told him to pick a number from 1 to 10, and if he guessed
correctly, he would get his free sex. The buyer then guessed 8 and the
proprietor said, "No, you were close. The number was 7. Sorry, no free
sex this time but maybe next time".
Some time thereafter, the same man, along with his buddy this time,
pulled in again for a fill-up, and again he asked for his free sex.
The proprietor again gave him the same story and asked him to guess
the correct number. The man guessed 2 this time, and the proprietor
said, "Sorry, it was 3. You were close but no free sex this time".
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