At the first and last fly in I ever attended with my Midget Mustang, a parent actually layed her 2 year old spread eagle, face down on my canopy!
Like I said... First and last public-accessible fly in I'll ever attend.
I used to regularly work airshow events with my local CAF wing, mostly just standing by the planes to talk to people about them. It never ceased to amaze me how some people felt very free to just climb all over aircraft that didn't belong to them. I was standing by our PT-26 at PDk Good Neighbor Day one time...I think maybe it was Greg Koontz flying, and I was watching him kind of intently...I turn around and there's a guy just straight up standing on the wing!
I don't get it...I would
never touch another person's airplane without asking. Never.
Luckily, I have a good comeuppance story, also courtesy of the CAF wing. One of our Mustang pilots is a F-16 driver named John, and one day at a show, he strolls up to the P-51 and there's a man and his son who have climbed up on the wing. So John asks the man nicely to please get down off the wing. The guy gets mad.
"I paid to get in this show, I should be able to do whatever I want blah blah blah..."
"Get. Off. The. Wing. Please."
Still grumbling, the man complies and walks off with his son. John thinks it's over, but about half an hour later, he comes back from walking around a bit to find the same guy on the wing, and this time his kid is sitting in the cockpit! The kid is playing make-believe and talking into what he
thinkg is the microphone.
Except it's not the microphone. It's the relief tube.
John: "Sir, you really should have your son stop doing that."
grumblegrumblepaidtogetinthisshowgrumblgrumble
"Sir, do you realize I pee into that thing he's putting up to his mouth?"
"AAAaAAUUUUUGH!!!!!!"
I don't think he found them on the wing any more after that.