And This Is Why That Law Exists

I work at a DIY store. We sell those bottles with propane that you can use for BBQs or whatever you need it for. Since we’re located in Europe, it’s a law that the bottle has a safety valve, so no propane can come out of the bottle as long as nothing is attached to it, even if you open the valve.

One customer thought his bottle was empty. Since you can’t tell if it’s empty or not, I weighed it.

Me: “No, it’s full.”

He then opened the valve and held the flame of a lighter to the valve.

Customer: “See? Nothing happens! It’s empty!”

Me: “Are you stupid?!”