I have had one for a few years and was using it last night.. I heard a pop and noticed that it seemed to be jammed because I couldn't squeeze the 2 small levers any more. Well, the popping sound was the spring breaking inside and flying into my nose like a nail gun!! It sank a good 1/2" into the skin inside my nose and when I pulled it out blood just poured out of my nose like a water faucet. I was close to dialling 911 since I had never seen that much blood spray out of my nose before. Luckily I got it to stop bleeding about about 30 minutes. I STRONGLY suggest you do not use these until they modify them to avoid springs from shooting out. I can't imagine using these on ear hair or eyebrows?!?! I would be blind or deaf right now!!!