I have a super old house that has these in it, along with spiders and other various creepy crawlies (nothing dangerously venomous in the area, save one spider species I’ve never seen, which only produces mild tissue necrosis).

I really don’t mind them -certainly not enough to do anything about them- and the cats like chasing them in the middle of the night, so whatever.

But man, on the rare occurrence I go to the bathroom in the middle of the night and see one in the red light of the nightlight, skittering across the wall with a quickness, scares the bejesus out of me. Every. Damn. Time.