I think I might have had one when I was a kid, around
6 or 7 years old.
It was a piece of junk.
One thing that blows me away is how cheap good knives are. A couple of times in my life I was a hair away from throwing down a pile of cash on an expensive custom blade with exotic materials... but one year I bought a Kershaw Ken Onion knife...think it only cost about $60 or $70... and the damn thing worked like a charm.