I've literally seen pocket lighters that had a warning that said "Do not use near fire or flame", coming from a device literally designed to generate fire! 😂
People have already proven themselves excessively stupid, I don't see why guns aren't required to have a lengthy safety warning literally etched into the metal by now. 🤷♂️
As Dave Barry famously observed, the box a Water Pik comes in bears the warning, "Do not use while sleeping."
Guns already have lengthy safety warnings etched into them. Unfortunately, there definitely isn't enough space to describe every moronic thing people could do with them.