I had a glass coffee table, it was 12mm thick (approx 1/2 ") I had this table for approx 5 months when one night, it just gave off a bange and collapsed (I wasn't in the process of placing anything on it, etc, it had no chips). Some small fragments were embeded into my wife and my hands. The only explanation I can think of is that as it was 1.2M from a heater (approx 4 feet). The heat from the heater caused unequal thermal expansion one one side, and the stresses resulted in the coffee table table exploding. The glass wasn't toughened (it broke into normal shards like std annealed / float glass). The manufacturer stated that the glass is slowly cooled after they bend it to form the table. The question I have is 1- is it possible fro this to have occured in a normal domestic environment ? 2- is the thermal expansion the likey cause ? 3- if it was toughened glass, could this have been avoided, or be less likely to occur? The company that made the table said this is an impossiblity !