Two guys were working at a sawmill one day when one of the guys got too close to the blade and cut off his arm. His buddy put the severed arm in a plastic bag and rushed it down to the hospital to get re-attached. The next day he goes to see his chum, and finds him playing tennis. "Incredible!," says his friend. "Medical science is amazing."

Another month goes by and the same two guys are again at the sawmill working when the same guy gets too close to the spinning blade and this time his leg gets cut off. Again his buddy takes the leg, puts it in a plastic bag and takes it to the hospital to get re-attached. The next day, he goes down to see his chum and finds him outside playing football.
"Incredible!,"
says his friend. "Medical science is amazing!"

Well another month goes by and again the same two friends are at the mill cutting wood when suddenly the same guy bends down too close to the blade and off comes his head. Well his friend takes the head, puts it in a plastic bag, and heads to the hospital to get it re-attached. The next day he goes to see his friend but can't find him. He sees the doctor walking down the hall and says, "Doc, where is my friend? I brought him in yesterday." The doctor thinks for a minute and says, "Oh yeah, some idiot put his head in a plastic bag and he suffocated."