Tommy goes to the doctor complaining about increased appetite and insatiable hunger. The doctor asks for the symptoms and diagnoses that he has tapeworms. The doctor prescribes medication and asks to meet him in a week. Tommy comes back and says that it was ineffective and that he feels hungry all the time.
The doctor prescribes new stronger medicine and tommy comes back complaining that even this medicine has had no effect. The doctor suggests taking a body scan. The scan reveals that instead of a few tiny tapeworms, there is this one big long tapeworm residing inside his intestine.
The doctor ,after pondering on the issue , tells Tommy that he has thought of an effective way of dealing with this worm. The doc asks him to get a slice of pizza , a roll and a cookie on the next day.
On the next day, as soon as Tommy arrives , the doctor tells him to pull his pants and undies down and lie down on his tummy. Tommy resents , but the doctor assures him that this is a well thought of cure and is completely safe. He then proceeds to push the slide of pizza , the roll and then the cookie into Tommy's butthole.
The doctor then tells Tommy to get the same items tomorrow.
This same routine continues for 6 months ; the doc pushes a slice of pizza , a roll and a cookie into Tommy's anus in the exact same order.
Then one fine day , the doc asks Tommy to get a slice of pizza , a roll and a hammer for the next session.
Next day :
The doc pushes in the slice. Then he pushes in the roll. Then they wait. 5 minutes pass. Nothing happens. 5 minutes later. Nothing happens yet.
And then suddenly the worm comes out and shouts "where's my damn cookie ?"