[TaxRelief]

My guess is that kid was messing with Silver Acetylide which is made by combining 1 g of silver nitrate with 10 g of Calcium carbide (details omitted, do not try this at home). The result is extrememly volatile (sensitive to movement etc.)

[Petronski]

I'll make a note of it. I'd never heard of such volatility in calcium.

As far as my physical science education goes, I joked with my nephew that at least the stupid bastard hadn't tried to steal some phosphorus or sodium.

That much I do know.