There was this guy that went to the doctor to get is sperm counted. The lady behind the desk handed him a jar and said, "Bring it back tomorrow, full."
He says, "Okay, I'll be back tomorrow then."
Well he goes home and comes back the next day, and he hands the woman the jar.
She says, "Nothing's in it."
The man responds, "Well, I went home and I tried with my right hand and I tried with my left hand and nothing happened. I called my wife into the room, and she tried with her right hand and she tried with her left hand. Nothing still happened. Well, we called our neighbor and she came over, and she tried with her right hand and she tried with her left hand, and still nothing happened.
And the woman behind the counter looked stunned and asked, "You asked your neighbor over to help you!?"
And he says, "Yeah, we couldn't get the jar open."