Accounting Mistakes

An office worker opened his pay envelope to find his check was short $100. He called the accounting department to voice his complaint.
"You're right, we made a mistake," said the clerk, "but last week we overpaid you $100 and we didn't hear you complaining then."
"Look," said the man, "I can overlook one mistake. But two weeks in a row?"

The Right Way

A Mexican couple in their late teens come to a doctor's office and say: "Doctor, we would like to know if we are screwing properly. Will you watch us, please?" The doctor, somewhat puzzled, agrees, they climb on his table, the boy gets on top of the girl, and they have sex. After observing them, the doctor says, "Yes, you're having sex properly. That will be forty dollars." They come back the next day with the same request, but this time the boy enters the girl from the rear. They keep coming for four days in a row, using different positions every day. On the fifth visit the doctor says, "Why do you keep on coming back? I told you you're having sex properly." The boy explains, "The hotel room costs the same forty dollars, but this way we get reimbursed by Medicaid."

Oysters to Charity

Q: Why don't oysters give to charity?
A: Because they're shellfish.