I haven't got one of my own stories to tell, but I do have one of my Uncle. When I was a kid, he was visiting Canada for the first time from the old country. He asked to borrow my SAK. Not knowing any better, I lent it to him. I watched him take off his sock and prop his foot up in front of him. Guessing at what was going to happen next, I suggested that he use some nailclippers instead. Scowling at me in a way that said, 'I know what I'm doin' kid.', he proceeded to cut his toenail. In that moment of weird fascination when you can't look away, he managed to slice the top of his toe off. 
