@stueytheround It seems like you may be referring to a common occurrence with spiders where they leave behind a smudge or residue after being squashed or smeared. Spiders have a soft body, and when they are squashed, their internal fluids can spread and leave a mark that can resemble a smear. It's important to be cautious when dealing with spiders to try to avoid harming them and prevent any potential mess. If you notice spider webs or spiders in your living spaces, it's best to safely remove or relocate them rather than squashing them to avoid the need for cleanup and potential stains.