Why Are They Called "Trouble Lights"?

Maybe the florescent ones technically aren't trouble lights. Anyway, I don't remember exactly where or when I got this Bayco worklight, but since it's yellow I think it must've been 1996. "Huhn?" you say. Because in 1996 Melcher and I were painting Freida yellow, and everything I bought around that time was yellow. That's the best I can explain it.

It's taken a surprising amount of abuse without complaint, having been dropped from a decent height dozens of times and used as a light-duty hammer. I'm happy to report that I've never had to change the bulb. I don't think it illuminates an area as well as an incandescent trouble light would, but it doesn't get very hot which is handy when it falls on your face, or when you douse it with gasoline. And did I mention I've never changed the bulb?