OAP Sperm Count

The doctor gave the old man a specimen jar and said, 'Take this jar home and bring back a semen sample tomorrow.' The next day the old guy goes back to the doctor's office and hands over the jar, which was as clean and empty as it was the previous day. The doctor asked what happened and the man explained, 'Well, Doctor, it's like this, first I tried with my right hand, but nothing happened. Then I tried with my left hand, but still nothing happened. 'Then I asked my wife for help. She tried with her right hand, then with her left, then she tried with both hand but still no joy. She used her mouth, first with her teeth in, then with her teeth out, and still nothing happened. 'We even asked Rosie, the lady who lives next door and she tried too, first with both hands, then both armpits, and she even tried squeezin' it between her knees, but still nothing.' The doctor was shocked and asked the old dude 'You asked your neighbor?' The old man replied, 'Sure, but none of us could get the jar open.'