I rented a small boat in Greece and the guy in the harbor showed me a map of the islands I could go to and there was a red line marking how far you were allowed to go. The guy put his hand on my shoulder and very seriously explained that the red like was not visible on the surface of the sea it was just for reference on the map. And told me about this British couple who got on the boat and drove straight on until the fuel ran out. They were lucky they still had phone signal and they called for the guy to come get them. When asked why they did that they said they couldn't see the red line so they thought it was ok...

Must be in the US

Every warning up there is in place because someone tried to do exactly what the warning tells you not to.

I am a dentist and any oddly specific instructions I give are usually because some turd has tried it before:

“Clean your nightguard by running it under warm water. This means a few seconds under the warm water from your tap - do not boil your nightguard in a pot for half an hour, it will be destroyed”

“Do not place a tiny crab fork in your extraction site to remove food debris”

“If you require an adjustment, please return. Your garage power tools are not safe to use on your teeth”

I've come to realize that most of us are just smart enough to fuck things up.

There’s a reason that there is a warning on the Preparation H tube that says “Do not take orally”

Why not just use distilled water?

Why not just advice people to rinse with alcohol or hydrogen peroxide? It's harder to misunderstand.

But boiling water that cooled down to 80°C is also boiled water and has since cooled down, still hurts. So yeah be a bit more specific doc.