That reminds me of a couple days ago....
I was at Paramount's Kings Island with my GF.
We were riding the elevator to the top of the Eiffel Tower. It is a 1/3rd scale replica.
The operator was announcing that by state law you could not spit, throw, launch, drop any objects, etc, etc, from the top of the tower. (It is some 279 feet up)
At the end, I muttered 'Are we allowed to breathe?' He promptly said "No! No breathing!!!"