It was around 1977, my junior year of high school. My best friend (who taught me how to play the bass) was playing in the ULTIMATE low-fi band composed of a singer/guitarist, drummer and bassist. Since they had no real PA, the singer was running a mike to a Peavey TNT bass amp. My friend was playing a Gibson Grabber through one of those HUGE Gibson bass amps. The head was only about 25 watts, but the cabinet, which was far bigger than any 8x10 I have ever seen, had what looked like about a dozen PA megaphones for speakers and had its own internal power amp. It was HEAVEY and MONGO LOUD. Anyway, they're playing Space Truckin' by Deep Purple and they are at a fever pitch. About that time, this Gibson amp starts literally smoking. It is absolutely BILLOWING out of the front and back. The tone went from punchy to DESTRUCTO distorted, but no one, including my friend, seemed to notice, other than the audience thought it was part of the show. Remember, this was the heyday of giant arena shows with lots of pyro (Kiss!). Anyway, just as the song ended, the amp finally bursts into flame (!) and DIES. Ther crowd went absolutely APE ****! Needless to say, that was the last song of the evening.