Several years ago, I had a Rhino spray-in lining put in my pick-up. I drove it home and parked it in the garage to cool. A bit later, I walked out to check on it (garage lights weren't on so it was fairly dark) and saw what looked light a little bubble on the liner. It was pretty small and I figured I would just pick it off and, since the material was still somewhat warm, any resultant blemish would kind of heal itself.
Well, the little black bubble had a red hourglass on it!!:swoon: I dropped it real quick! The little booger wasn't dead, but apparently whatever fumes the liner was still giving off had rendered her extremely groggy. I was darn lucky.
That was the first black widow I'd ever seen and I hope it was the last.