Beehives
You know what would be scary? Walking beehives. They could just walk themselves over to wherever they weren’t wanted, and start discharging stingy little bees at everyone. And after all the stinging, they could walk off to someplace new and do the whole stinging thing all over again.
No more relying on good old fashioned Beehive Maps to know where not to go and what streets to avoid. You’d need to be on full Not Getting Stung alert at all times. It would be a scary, scary world.