[cas3]

good advise from jseery. years ago i needed a short piece of pipe and the only one i could find was a whole 20' stick. so i drug it into the garage and fired up the torch. while making the cut i heard that familiar "whump" sound that gas makes when lit. the brain remembered it from dad lighting piles of leaves in the fall. anyway, a spark had traveled down the whole length of the pipe and found the tin oil drain pan with some gas in it from cleaning some parts a day or so before. it was outside near the edge of the concrete apron, so i was able to just shove it out on the gravel and tip it over to save my pan. not a crisis, but it very well could have been. keep an eye on where your sparks from a grinder are flyin too, they will always find a rag or paper towel in my mess.