I once was driving over an underground transformer when it exploded. A tremendous clap followed by a comparatively long and low hooting sound. Lots of vile sm

I once was driving over an underground transformer when it exploded. A tremendous clap followed by a comparatively long and low hooting sound. Lots of vile smoke. I was lucky to be in a car. A while back the same thing happened to someone walking over the top of a transformer causing very serious injuries. I’m always kind of creeped out around iron grilles now.