Anyone have stories about strange things we used to do that now make you shake your head? Can be personal, or business/government.

We once allowed kids to pay money and a cereal box top and get a ring with polonium in it. Sure, polonium is relatively safe to handle, but very dangerous internally. A strange item to sell to kids.

https://www.snopes.com/fact-check/kix-lone-ranger-atomic-bomb-ring/

To show another, more personal, example, we had contests to see who could stand the longest in the bed of a moving pick-up. Or, we had a power substation about a block from my house that had a grass field directly alongside it. That became our football field. Punts would occasionally go over the fence, and we would climb the fence to get the ball back. More than a few times the police would come run us off.