A camper van dweller who has been living in the vehicle for three months left the key in the ACC position and drained the battery. The incident occurred at 4 a.m. near the cities of Ashikaga and Sano in Tochigi Prefecture, Japan. The door was opened manually, but the engine would not start. Because the insurance policy included roadside assistance, a technician arrived in less than an hour and provided free service despite heavy rain. The author notes that in car-dwelling life it is important to develop the habit of removing the key immediately to avoid falling asleep with the ignition on.