Reminds me of the time I had a little fun at the campfire. Let just say firecrackers can be concealed very well inside of a marshmallow on the end of a stick. Nobody notices the tip of the fuse sticking out, and then..
When we went camping in college there was a ritual "exploding a can of baked beans" session well into the alcohol consumption (people did clear to a safe distance). One trip, I walked over after the beans went off and tossed in a full can of Deep Woods Off insect repellant with the comment that beans were for wussies...
It took about twice as long than beans did, and I had to warn off some of the crew who started to inch back (we got about 150 feet away) but an extra large 20 oz can (Bonus 4 free ounces!) of Deep Woods Off goes off like a low yield nuclear weapon in a campfire. It was astounding, we had to build a new fire, and put out the tents, sleeping bags, etc. We found little melt holes in stuff for weeks after that...