This is the moment a delivery driver had to chase after his runaway tricycle after it sped off as he was loading it in northern China . Funny CCTV footage shows the delivery man stacking goods on the back of the electric vehicle in Xingtai County, Hebei Province, on November 1. As he places one box on the pile it knocked over another, which tumbled onto the tricycle's handlebars and somehow set the vehicle in motion. One of the boxes loaded onto the electric tricycle fell forwards, triggering the accelerator and sending the vehicle crashing into a wall in Xingtai…