...even if they were "from an old box tucked away by your parents". http://www.ctvnews.ca/canada/bomb-s...nto-woman-finds-sticks-of-dynamite-1.2166798#
Reminds me of high school. In the chem lab closet were some ancient jars and bottles. One of them, picric acid, had crystallized out. That stuff was one of the main explosives used in WW1 in artillery shells and crystalline is about as sensitive to a bump as nitroglycerine.