when you're 11, you have huge amount of energy and willpower that you think you never have, kids can easily do even 100 miles in one go leaving their parents breathless.
never underestimate them, always challenge them in doing something they don't think they can do.
I hope you're recanting childhood observations and not something current and far more sinister. ;-)
I hope you're recanting childhood observations and not something current and far more sinister. ;-)