I'm sure you are talking about Fishing Rhino. He is old, and he is as full of it as a live rhino.
I'm 68. There are old people, and then there are old people. Most of us are just like you younger folk, except some of our parts are out of warranty and are failing. Trust me, we elders truly despise getting old, but it's much more preferable than the alternative. Bear in mind that, for most of us, our minds are just as sharp as they were forty years ago. It's our bodies that keep screwing with us. I take no offense at jokes about older people. For the most part, they are well deserved, and old people tell jokes about old people too. For the record, I applaud the OP's post about the deposit of Mt. Everest. At least the old gent made it to the bathroom in time. The heart-breaking thing about some of the elderly is the onset of dementia. That's when everything goes to hell in a hand-basket.
Now, let's talk about the REALLY, REALLY STUPID stuff that those in their teens and twenties do.