"They kind of are, but. Old buildings, they have this style of fuses instead." John's squatted in enough of said older buildings to at least know that much. He hasn't electrocuted himself yet which is always a bonus as he starts unwinding the snapped fuse wire and gropes around the dusty, rusty sediments on the bottom of the fuse box interior to find the right amp rating wire to coil back in. The light helps at least, and he can put his lighter away while he works. His enchanted zippo always makes him crave a smoke. Something about his brain making the connection between lighter and cigarette.

"Suppose you wouldn't know." Modern house, decent family. Plus they probably have electrical compliance standards or something.