Ha! Cool. Yes I once had a bit of difficulty keeping up with an older looking guy that passed me. When I finally caught up with him (He was almost fully packed out in the parking lot), I said hello and asked how old he was. He said he was 72. I commented that he was pretty dang fast for 72. He told me he could be even faster if he got reckless, but had reached the age where to quote:
"I'm just too old now to risk falling!".