They apparently issue these warnings because they’re worried that people will do stupid things with their products, hurt themselves, and blame the company.

The messages say such things as: “Don’t take this toaster into the bathtub with you.” Or . . . “Don’t operate this airplane unless you’ve had flying lessons.”

Over the years, we’ve seen warnings such as one on a child’s scooter: “This product moves when used.” As if we didn’t know that.

And this one, on a kitchen blender that whips, chops, and dices: “Never remove food from the blades while the product is operating.” Ya think?

Then there was this label on a curling iron. It read, “For External Use Only.” And this one, on a box of hammers. Hammers! “May be harmful if swallowed.” No kidding!