I was walking by the house when I noticed some dark splotches on our beige parging. It looked like mud splashed there. But that was odd, so I looked closer. Each splotch was seething with thousands of tiny bugs. I have no idea what they were, but without hesitation I smooshed them to death. I hope they weren't beneficial, but the sheer numbers alarmed me.
Maybe I prevented a massive infestation of who knows what.