Story time.

My girlfriend, while I was dating her, had the stereotypical Basement Hang-out that we'd all collect in, load a cord of wood into the 'fisher' stove, get it blazing so it was going vloo-vloo-vloo on the vents (pumping). and watch whatever we got from Blockbuster.

Years later, we're moving her stuff around, someone notices a stain from where we moved the futony couch and looked closer.

Nope. The sheer mass of spider carcasses all in a line looked like some kind of skidmark on the carpet. But it was spider carcasses, their limbs all a-jumble but layered over one another. Look carefully around the edge like there's a jump-scare coming, and I can see her all tucked up in a nook on the underside of the futon, scarlet hourglass marking and everything. We'd been hanging around this black widow for weeks, probably, long enough for her to absolutely decimate the Eratigena population down there.