St. Peter was standing outside the gates of heaven when three men appeared, all of them doctors.

Peter looked at the first one and asked, "What have you done in your life to deserve admittance into heaven?"

"I was an oncologist -- I helped many cancer patients and saved many lives," the man answered.

"Very well," said St. Peter. "You may enter..."

Peter looked at the second man and asked, "What have you done in your life to deserve admittance into heaven?"

"I was a clinical pediatrician -- I helped many poor kids who could not afford private care," said the second man.

"Very well," said St. Peter. "You may enter..."

Peter then turned to the third man and asked, "And what have YOU done in your life to deserve admittance into heaven?"

"I was the director of a large HMO company in the United States," the third man said proudly.

St. Peter paused and looked in his book for a few minutes. After a while, he looked up and said to the third man, "Well, you may enter the Kingdom of Heaven, but you may only stay for three days...."