OK, so back in the 80s we used to try and emulate groups like KISS and pretty much everyone else at the time by using things like dry ice, Christmas lights everywhere, ramps, etc. to make our shows more exciting. One time, we were using a homemade smoke bomb (ingredients easily found at a local pharmacy, which I probably shouldn't list) that had 4 small pots inside one big one. Each pot could be ignited individually with a foot switch that would spark and ignite it. However, we must have buried the probes so no spark was generated. Instead, our guitarist, who always had a cigarette wedged between two strings in his headstock, took the lit cig and tossed it in to ignite it. The ensuing column of fire and smoke led to an evacuation of the space (starting with our drummer who was elevated and whose head disappeared into the smokey miasma first - though we kept playing without him for a bit longer). A huge hole was burned into the ceiling and the stage was scorched. Because we were all around or just under 18, our instruments were seized by the owners until we came back with our parents and apologized. I know we got off easy, but how humiliating for us bad ass junior rockers! Anyone else ever suffer from lighting or special effects gone seriously wrong?