Screaming Spiders

Yesterday when Chris came home we found that big mama black widow that was on our porch and Chris whacked it with a dust pan and it fell to the ground ... and it laid there ... with a yellowish sticky substance/crippling poison oozing out of the cracks of it's broken butt. Several minutes later, Chris returned with an oven later and, assuming it was already dead, started lighting the carcass on fire. Suddenly, the crumpled black widow started screaming! I mean, it was actually screaming. This high pitched, squealing sound came from it. So disturbing. That was the first time I'd ever heard a spider scream.