On two occasions I stupidly pierced my belly button with a sewing needle because I was simply bored. Needless to say It almost got infected and I could of had some serious damage. I was like 12.
I also pierced my first holes in my ears because I had pierced ears three different times and on my left ear there was one closed hole on top of the other so they were too afraid that if it was pierced the last time that it would tear open so I just did it myself a few years later. Now I have size zero in my first holes and then tens in my second hole.