Dixie, a driver for Express Delivery Company, leaves the truck's motor running in neutral and carelessly forgets to set the parking brake while she makes a delivery. The truck rolls and crashes into a nearby gas station pump, igniting a fire that spreads quickly to a construction site a block away. A burned wall collapses onto a crane, which falls on Fazio, a bystander, and injures him. What must Fazio show to recover damages from Express Delivery?