Only if there is a weak spot on the glass Or you concentrate it only in one area. we used to take rear Dodge minivan window (backlight) and have a 350lbs guy jump on the rear tempered window laying on a rubber floor mat to show how tough the tempered glass was. Glass would go almost flat and then rebound pushing that guy off the glass and about 5ft in the air but didn't break. (took about 4 guys to catch him and keep him from falling just like a trampoline) But one light rap on the edge made the piece shatter
