Light bulbs and florescent tubes turn to dust when you smash them, you can eat a light bulb pretty easily. The only danger is if you get a clean break, like breaking it in half, and that segmented piece pierces your
skin.It's like smashing a bottle, if you get a clean smash it doesn't really do shit, if you smash it into two halves then the halves can easily be used to stab you and majorly fuck you up