After an operation the doctor came into the patent's room to explain to the still groggy man that the operation to amputate his leg had been a complete success.
"The operation went quickly, the stitching went fine and you show signs of a quick recovery from the operation. You'll be able to pick out a prosthetic leg as soon we have completed your second operation."
The patient looked very puzzled and asked, "What second operation?"
The doctor replied, "This operation we accidentally removed the wrong leg."
