So we were working at the farm today and my 15 y/o daughter was out riding. She came back with that look on her face that said "you're going to be mad dad". Come to find out she was doing everything I taught her, and while adjusting the passenger side mirror so she could see better, she had her hand wrapped around the mirror, and her thumb in the center of the mirror. The end result was a thumb full of glass for her (or whatever they are made from) and a broken mirror. She swears she didn't push that hard. Just thought I would let everyone who might have them know about this.