It turns out that cheap e-bay paintball grenades have a shelf life of about a week. We split of box of 50 assorted grenades. Judging from the smell, it would seem that one of the vinegar units was the problem. The grenades were all wrapped up and in a cardboard box with stuff sitting on top of it…. Somehow, paint managed to splatter on the floor and wall about 3 foot away. I can’t wait to see when these things go off in the open space!
