When most of us daydream about our retirement years, we think of kicking back, taking it easy, and enjoying all the little moments that used to pass us by in our busy day-to-day life.
Of course, that doesn't mean we should let ourselves go physically, as several senior citizens have proven over the years. Who says you can't still kick butt just because you've earned your AARP card?
While Olympian gymnast Oksana Chusovitina is still few years shy of claiming those discounts at 41-years-old, the man in the video below definitely proves that age only matters if you let it.
At 68 years old, Wayne McEntire, an American visiting Brazil to watch the games live with his grandson, Britton Barker, was recently offered a seat reserved for elderly passengers while riding on the town's local metro.
However, despite how polite the offer was, the younger commuter didn't realize just how unnecessary such kindness was for this particular gray-haired man.
Like many youngsters, Britton Baker has been documenting their time together while on the adventurous vacation on his Twitter account.
So he obviously had to show off how his grandpa, or "papa" as he refers to Wayne McEntire, making clear to the other passenger that he would be just fine standing.
Though the other rider was extending the offer only out of good will, of course, he and the others on the train were floored when they saw McEntire reach for the handrail.
And lift himself up in an impressive position! The original tweet has now been shared over 100,000 times on Twitter and even more throughout other media outlets.
And they've, of course, been having a lot of fun with the overwhelmingly positive response, with Baker joking, "Oops accidentally made Papa Twitter famous," the day after seeing his photos going viral.
Take a look below to see more of McEntire's amazing antics as he and his grandson continue to have a blast in Rio.
And don't forget to SHARE the athletic Papa with your pals!