So do we ban cars because you can kill yourself in your car? Knives, swimmimg pools, hammers, plastic bags, electricity, gas, staple guns, you could even kill yourself with a pencil if you choose to do so.
People who are that stupid should be eliminated from the gene pool. The only purpose they have in life is to entertain others, but it's a little unfair on those who have to clear up the mess.
Anything can be dangerous when misused.