Every once in a while I put my contact lenses in solution that has become warm. Otherwise it's solution that has been warm, but I let it cool before I put my lenses in.
It ripped in half by me just picking it up. I have no nails, and I'm careful with my lenses. Can warm liquid cause it to be more fragile?
Read more: Does warm contact solution (has been sitting in my car) cause contact lenses to rip?