This is EXACTLY what I have always been concerned about.
Glass toys are pretty, they seem interesting, but they frigging terrify me, not matter how unusual problems with them are. ITS GLASS and very important, sensitive parts of the body. I break most everything that it is possible to break, and have what I am told is an extraordinarily *strong* vagina. If its possible to break a glass toy during penetration, I'd be the one who could do it.