Two old men are throwing them down at a bar.

"Ya know," the first one says, "when I was 30 and got a hard-on, I couldn't bend it with both hands. When I was 40, I could bend it about 10 degrees if I tried really hard. At 50, I could bend it 20 degrees, no problem. I'll be 60 next week, and now I can bend it in half with just one hand."

"So," the second man asks, "what's your point?"

"Well," the first replies, "I'm wondering how much stronger I'm gonna get!"