Every time! Both times I forgot to remove it, it was gone the next day! And coincidentally, it was always after going to a Sharis that night, and I had taken my car to the same shop within that same week. Both incidents were within a two year span! I actually had blood in my car from where a guy crawled in through the quarter glass on my 1990 Z24, but he did leave me a pair of faux-kleys(fake oakleys) and a Dale Earnheardt hat!