Rawsthorne v Ottley and Others A tip-up lorry in the charge of a single driver had delivered coke in a school playground and was driving away when a number of boys jumped on to the rear of the lorry causing the tipping part to tip up. Another boy, the plaintiff, had jumped on to the lorry immediately behind the driver’s cab and when the tipping part of the lorry was suddenly released it came down on the plaintiff and crushed his leg.