It happened in other situations, too.
When I took my two kids to a Merry-Go-Round, and let them have it as I sat on a picnic bench watching from afar, parents and kids alike voiced their concerns.
“Someone is going to break their arm over there!”
“She’s going to fall and get hurt.”
“He’s spinning, and he’s going to get sick.”
Same thing when people saw my kids hanging upside down (per their own doing) for several minutes at a time.
“All the blood is rushing to his head. It’s gonna make him sick.”
“That’s too dangerous!”
Or when people saw my kids twisting and spinning around on a swing.
“Someone is going to get their fingers pinched!”
“That’s not safe. Put your bottom on the swing.”
The bigger issue occurred — for other parents — when my kids did these things and their children wanted to join in the “dangerous” activity. This is a common thread I see at playgrounds and when talking with parents I work with through parent coaching.
Related: How to Build Listening, Improve Cooperation Using a Printable Daily Schedule for Kids