my dad always tells me not to use any fire in my garage. even welding too! I worked for a guy that lives on the other side of town and 2 or 3 years ago he was welding and his son drove in on one of there quads and it was leaking fuel, the kid went inside and my boss didnt even relize it but he looked up when he hurd a boom! the whole 4 car barn was on fire. he lost about $250,000 in the fire. i learned from his story.