Oh, hell, I can find these things when I want to. I bet a couple of dozen are in my yard under rocks or in the brick pile.
I do kill them each time I see them, and I am very careful to be on the lookout.
Here in the Carolinas, pretty darned common.
When I used to do apt Maintenace and had to turn off the water, step one was to torch the water shut off box before I reached in to turn the valve handle.