Some idiot around where I live burned their house down a few years ago putting christmas lights on dimmers. No major details were given on what type of lights or what actually sparked off the fire. News and media just spit out dimmers and christmas lights.
Remember, safety FIRST!! Not "Safety Third" as Mike Rowe of Dirty Jobs says.(BTW, that's a cool show, I recommend people tune to Discovery Channel on Tuesdays to watch, and no, I'm not being paid or prompted to plug his show)