A gentleman goes to see the doctor about getting s

A gentleman goes to see the doctor about getting something done
about his missing penis, which he lost in the war. The doctor
asks the man how many males were in his family and the gentleman
replied seven. The doctor said if they all agreed, he could take
an inch off of each male and the gentleman would have a eight
inch penis.
The gentleman asked the other males in his family if they would
agree to having the surgery and everyone said yes. The next day
all eight males went into the hospital to have the surgery. After
it was all performed the doctor told the gentleman that he had a
brand new eight inch penis, but to be extremely careful with it
and to come back and see him in a week.
The next week the gentleman goes back to see the doctor and the
doctor asked him how his new penis was working. The gentleman
replied,
"Great doc, but I only have one question. Who's brilliant idea
was it to put grandpa's part in the middle?"