In my profession it's not the years but the miles. Logged 4 mil. with out a chargeable offense. Nice thing though is I just picked up one of the new trucks we get this year. Back a few years ago my daughter, and her boyfriend decided to move from a 3rd floor apt. I told them I would load the track but they had to bring it all down. Well turns out I ran circles around the two of them, hauling it down, and loading. They were both 21 at the time. Currently got a-fib, and my knees let me know how much I played football back in HS. I think the topper was when one night we went out to eat, and I got the senior discount before I was old enough to. My daughter just about loaded her pants she was laughing so hard.