I think this sounds like a bad idea on many fronts. :nuts:
Here are ten reasons to reconsider:
1) You are launching explosives towards people.
2) You can't control where they land.
3) After they go bang, you can't necessarily prove what they were (when the BATFE asks).
4) If stored in quantity, they could leave your home a smoking hole.

5) If someone gets hurt by a "warning explosive," you are opening up lots of legal liability. At 70 yards, it's hard to say that they were an imminent threat to life and limb. :dunno:
6) If you weren't trained by the military and you weren't a chemistry major, you could mess up and leave your home a smoking hole. :gaah:
7) Ever walk across carpet in leather soled shoes and then shock yourself on something metal? You might go kaboom if you touch your explosives. :kiss:
8) Buying materials for your chemistry experiment could get you in trouble. :surrender:
9) You could become a Darwin awards candidate.
10) Your last words might be "Hey Bubba, check this out..."