I had all kinds of stuff in pots this year and I was pulling out the dead stuff and dumping out the dirt into a big bin, so I could reuse it next season to fill in stuff. I paid good money for that organic potting soil, so I always reuse what I can. Anyway, I had been dumping out small 3" plastic pots for about 20 minutes, which is a totally mindless thing to be doing, so I was not paying any attention. I just happened to look down and see that the dirt
from the pot I had just emptied was moving so I took a twig and scratched the dirt around and there was a BIG, FAT BLACK WIDOW SPIDER. I threw down the twig, ran about 30 feet and screamed like a little girl.
When I was at the farm every day, a spider like that would not have drawn a second glance, other than to make sure it wasn't where somebody might get their hands on it accidentally. Good thing I was wearing gloves, though. A black widow bite is extremely painful though rarely fatal so I wasn't in any real danger.