So who of you that served in the military hasn't uttered those words - with a grenade simulator or CS canister nestled in the bottom of their ruck? I think this has been going on for as long as there have been simulators and smoke/CS grenades. These days with terrorist fears, and bomb sniffing dogs, it's just not a good idea. Not that it was ever a good idea - just sayin'. Marines caught with ten artillery simulators at California mall.