I used to challenge boys to arm wrestling in high school up till about 16. Never did in a bar though. Sounds like fun.
Why? Because I'd always been strong and acrive and I was kind of loosely measuring the bypass, I guess. We all know in puberty, boys develop and have denser muscles. I was curious about that. Like, the rate, how fast it happened for each individual, that kind of thing.
Arm wrestling is a good way to measure that. Loosely.
Nobody was ever smooth enough to let me win though.