Hehehehe, I bet this thread will be considered rather strange around here but here goes... #0000 steel wool is highly flammable. Many use this stuff to clean and polish fretboard and frets. I usually do not, unless it's a first time buffing a new maple necked strat that has a layer of laquer over the frets. I'll use steel wool the first polish to help getthe lqcauer off the frets. At any rate, many of you may know this, but I did not. I had finished cleaning up the guitar and was finished the setup, adjust intonation. I got out my strobe tuner and was plugging it in using a One Spot 9v adapter. One of the 9v daisy chain barrel plugs just touched the round of steel wool sitting on my work space, I may just barely and quickly brushed it. And the steel wool lit up in flames and smoke. Whether it's the wool itslef or some chemicla or after product in the wool, it sure lit up. I couldn't believe it. I touched it again to make sure I wasn't going crazy and boy, it lit up again. So moral of the story is don't leave steel wool sitting around, esp. if you have type of power souce nearby. And esp. don't walk away from it or you may have a house fire or burn your workshop down without a clue as to what just happened. You know what, as I just typed this, I remember something in school about putting a 9v battery to steel wool and starting a fire that way. Guess I'm just forgetfull and this is not uncommon knowledge afterall.