I was walking through HD last week, heading for the lumber department. On the way there, 3 guys said hello and 2 asked if I needed any help finding something. I said no and kept walking. Once in the lumber department, I grabbed a cart and rolled it over to the rack where the 2x12x10' boards are. As I picked through them, one HD worker walked by, looked at me and kept walking. After I found a decent board, I picked up one end to slide on the cart. I looked up as another HD worker had just passed by.
I guess you could call that a "Home Depot Workers make me shake my head" experience.
As for the tool fusing debate, most stationery tools have overcurrent protection on their motors. That will most likely trip before any fire hazard is created. Smaller tools, like drill motors, will probably burn out the motor before it catches fire. Even if the tool caught fire, the cure is to immediately unplug it and douse the fire. You're there, using the tool. It's not going to catch fire if you're not using it.
As far as the wiring within your home, if the breakers are sized properly, to protect the wire they serve, there should be no issue with fires unless the breaker fails. If you are concerned that will happen, remove your breaker panel and install a fuse panel. Fuses are more reliable than breakers. But changing out the breakers to a reduced size to match the connected load is unnecessary and a waste of time and money. This fusing debate has gone orbital.