Greetings,
I think this thread is becoming a bit muddled. When one refers to "safety glass" it can be tempered (either by heat or chemical treatment), laminated, wire reinforced OR tempered AND laminated. ALL are "safety glasses".
Re: Post #4. Mr. kc. "...tempered glass in that it is much stronger than laminated or non tempered". Very true until it's not, to the point of complete destruction as evidenced by the anecdotes offered. It may not take any more than microscopic damage to an edge, a temperature change or even a scratch to cause shattering as mentioned by Mr. LM (post #7).
Heat treated safety glass's strength comes from the compressive forces imparted to (only) the surface of the glass during manufacture. Might be upwards of 30,000 PSI but that compression might only be in the first .003" of the surface. Once that .003" "layer" is compromised, that 30,000 PSI is released with explosive force producing those tiny pieces of what once was your port/window.