You know how there are things like “Warning: Flammable” written on matches and fireworks, and figures showing that you’re not supposed to stick your hand under the rollers of heavy equipment, well now there’s 
They only include these because they actually NEED them. Because of the idiots out there. But that one had a li’l lol in from me. 
Hmm. I don’t think there’s anything wrong about this way to check the diapers. But I guess this gesture would be difficult after that:
this is due to legal issues which companies had some years ago when people sued them because of not having warned about the danger of, say, putting a lighter in a microwave.
I think that security tests are now made by giving the item to a couple of incredibly stupid guys and seeing what happens.