Gymnastics soon puts you in your place, a few years back my niece had her birthday party at her gymnastics club. I was messing around doing chin ups on the rings, my niece jumped on my legs to try and pull of down, I did a few chins with her holding my legs. Then her dad came and jumped on like gladiators, I kept hold of the rings for pretty long.
The gym coach came over, young lad about 19, he said that he was impressed with my strength, do you wanna try some holds and some transitions like muscle ups. He made everything look completely effortless, I could not complete a single move despite him telling me exactly what I needed to do, it felt completely impossible.