Last summer I worked as a kind-of-a ride-op in go-kart tracks. There are height restrictions, and when there are restrictions, there are complaints. To be able to ride the smallest ones, you have to be 3 foot 6 tall. And what do the GP say, when their kid is too small:
1) We measured at home and I swear he's tall enough!
2) My child (usually son) has a hobby of driving go-karts. Why can't he drive here?!?
3) Why do you have to be so darn exact! I will complain about you to your boss!
The funniest thing about answer 2, is that the go-karts there are rubbish. If their child has a go-kart of his/her own, then WHY don't you go home to drive it?
(Anyway, I liked my job.)