Primemuscle is the resident "old guy" here, and I'd imagine he is somewhat of a father figure to many of us. Conversely, since he never had any children, I know he sees all of us as his children, and enjoys sharing the life experience he has acquired over his years.
That being said, what is the most important thing you've learned from this elder statesman? Here's mine:
Being and "old guy" I have my share of shit stories. Let's just say it is never a pleasant experience. At least at my age, I have no qualms about using someone's or a public toilet. I would never try to hold it like some of you did in the stories you've told. I pretty much go to the toilet even when I feel a fart coming on....don't want to take a chance of having an "accident."
Two things to consider: wet wipes and black underwear.