afrer years on changing rooms with any sports I can conclude that all men may have penises and penis is unremarkable. I can add that none was hard on changing room so even if I care about it and manage to remember would be a faulty sample. Someone could just got out of a freezing pool.
I read studies long ago that concluded that there is no correlation with height.
You might get better answers on show off it you are interested on tall people junk.