 Morrie watched as Liz put the tractor in gear and took off. Liz felt like he was on top of the world. The day wouldn't be a total bore after all. Everyone was waving at him and all was fine until the tractor hit a big pothole. Liz's foot slipped and the tractor lurched forward. Whoa! The accelerator's stuck! The tractor sped up and Liz tried to steer the big machine, but he wasn't experienced enough and the tractor went out of control.