One doc operated on a person for a hernia. He opened his testis and took 
the balls out and kept it on the table. At the end of the operation he 
wanted to put his balls back into the pouch of testis. He searched 
operation theatre but could not find the balls of the patient. Lastly he 
told nurse to get two small onions from his lunch box as he cannot keep 
his testis pouch empty.
After that operation he met the same patient in a garden for morning walk.
Being a good doc, he asked his patient how he is feeling now.
He said "Doc everything is fine, life is very cool except that whenever I
scratch my balls, my eyes start watering."