They’ve been crammed into toilets, tossed off balconies and set on fire. They’ve even been adorned with dangling bags of dog droppings.

As cities like Santa Monica and Beverly Hills struggle to control a rapid proliferation of electric pay-per-minute scooters, some residents are taking matters into their own hands and waging a guerrilla war against the devices. These vandals are destroying or desecrating the vehicles in disturbingly imaginative ways, and celebrating their illegal deeds on social media — in full view of authorities and the public.