Or you for allowing your toddler to be able to pick up a loaded gun. When I take my small children to friend's houses that are not normally prepared for toddlers, I watch them like a hawk. I move knick-knacks and glasses that they can easily knock over and break. I move bowls of hard candy and TV remotes. If there was a gun on the coffee table, I sure as hell would move it too. I certainly don't let the wonder around by themselves and if they pick something up off the floor I grab them and find out what it is. Fishy stuff out of a toddler's mouth is sometimes gross, but not hard. It's called being responsible.
Fact: People without small children do not recognize the stupid things small children will do. It is the parent's responsibility to know what their child is capable of and react accordingly.
And if that loaded gun were the size of a BB? After you remove the TV remotes, hard candy, knick-knacks and glasses...everything visible, what about the things you can't see? Are you REALLY a parent? Because if you are, you'd know that unless you want to lose your mind, its not possible to watch everything your kid does 100% of the time. Every child has ingested something faster than you could reach in and fish out. Infants, even in their undeveloped state, KNOW when they are eating something they shouldn't - and when they see you racing over to fish it out, they've learned to swallow it faster than you can get there.
And if you do watch like a hawk 100% of the time, no more than 1 feet, away, you're lame helicopter parent.
I don't support a ban on buckyballs, but its bullshit to say its 100% the parent's responsibility alone.