GeeWilly& another idiot are sitting in a bar when GeeWilly says,

'Ya know, when I was thirty and got a hard-on, I couldn't

bend it, even using both hands.  By the time I was forty, I

could bend it about ten degrees if I tried really hard.
By the time I was fifty, I could bend it about twenty degrees,

no problem.  I'm gonna be sixty next week, and now I can bend

it in half with just one hand.'

'So,' says the other idiot, 'what's your point?'

'Well, I'm just wondering how much stronger can I possibly get?'