An 80 year old man who h...

An 80 year old man who had never been married and had no children decided to make a visit to the sperm bank to leave a deposit just for posterity. When he arrived, the nurse handed him a small bottle and directed him to a small room in the back of the office.

He was gone almost 45 minutes and the nurse was getting worried when he came out with sweat dripping from his forehead and holding an empty bottle.

The nurse asked him what was wrong and he said "I used my left hand, I used my right hand, I ran hot water over it, I ran cold water over it, I beat it on the edge of the sink and I still couldn't get the lid off this jar."