Liar liar pants on fire

I am in the process of starting work as a driver. I am giving potential employers the impression that I have commercial driving experience on everything from hydroplanes to carousels. Today they called my bluff and had me go out on the road for a twenty minute driving demo to 'test my comfort level' in a 5 ton truck. Keep in mind, I have never driven one of these vehicles in my life. I clipped the curb just once turning right. My potential employer directed me to a spot where he wanted to check out some space for rent. It was right beside a shop where they detail and modify Porsche cars specifically. Potential Employer asked that I back it in about a foot from the wall so he could assess something. This involved coming ridiculously close to two rows of some very fine German engineering, going forward then in reverse. I think I start in a few days.