I think he's trying to say that they don't sell flashpowdered products at a gunshop... Well, the explosive that produces the air-pressure in the barrel of a gun is blackpowder.
Now back to the uitjes, I think it's not for people without a fealing for responsibility. They all will underestimate the power of the product, and light it in a district. So IF there are any dealers around here, please tell the 'customers' as many as possible about this product, and give 'em a piece of fuse, so the delaytime will be 10 seconds longer. It aint no fireworks, it's just a freaking BOMB! So watch your steps buddys! Always keep enough distance between explosion <--> humans, OLD PEOPLE(!!!), animals, cars, houses, or anything else wich you don't want to hurt/wreck. And, watch your ears!
Greetz, Alex(win)!(I hope you all understand my English. I know it isn't perfect, but I did my best(win)!)