An 85 years old man had to do a sperm count for his physical exam.
The doctor gave the man a jar and said, “Take this home and bring back a sample tomorrow.”
The next day, the 85 years old man reappeared at the doctor’s office and gave him the jar, which was as empty as the previous day.
The doctor asked, “What happened?”
And the man explained, “Well doc, it’s like this. First, I tried with my right hand, but nothing, then I tried with my left hand, but still nothing. I asked my wife for help. She tried with her right hand. And then her left, still nothing. She tried with her mouth, first with the teeth in, then with her teeth out, still nothing. We even called up Mary, the lady next door. And she tried too, first with both hands, her armpit and she even tried squeezing it between her knees, but still nothing.”
The doctor was shock, “You asked your neighbour?!”
The old man replied, “Yup. None of us could get the jar open.”