No blow-ups here either, but house stinking events, yes. I remember that my 1964 chemistry set had ammonium nitrate in it. It had also sodium nitrate, a.k.a. Chile saltpeter. Making gunpowder out of that stuff didn't work, but the potassiun nitrate you got from the pharmacist did work though. My and my like-minded cousin were sadists in the sand box from gunpowder made from the other nasty oxidizers he obtained.
Obtaining hydrogen from salt water (NaCl) in a rectangular fish tank by electrolysis was another chlorine stinker. I used power directly from the wall outlet with the zip cord attached to rectifiers and to two electrodes from those large 1.5 volt batteries with the screw terminals on them. I was lucky that I was not electrocuted by this setup. One electrode, chlorine was liberated; the other, sodium. The sodium then reacted with the water, giving off hydrogen plus sodium hydroxide. I did liberate a gallon jug worth of hydrogen from this.
Nonetheless, that chemistry set taught me basic chemistry.
Joelene