A bit moldy yes, and -Strictly Speaking, their motivation Not health related -BUT the effects -> Definitely health related. An important lesson for all:
Apparently a man in Rio De Janeiro has discovered a new potentially lethal substance interaction involving steel, firing charge and PETN; –Rocket Propelled Grenade, meet Sledgehammer. A truer Biohazard there never was.
Isn’t natural selection great?
JUMP BONUS+UPDATE: Must’ve gone something a little like this:
“grenade”, by Scott Craig
“Fossil sign”, by Thad Zajdowicz
“Fireworks 2”, by Phil Göhrs
Video, by YouTube User BobRock08053
• Source: MSNBC-Sledgehammer Opens Grenades
• More Coverage: DailyMail