Slippery Jim
Striker
Plus, if the driver got stopped by the cops for any reason he would be charged with operating an unlicensed taxi.I used to do it with a lad I knew who was a delivery driver and had to stop for this very reason.
This actually happened to me when my driver (from a legit firm contracted by my work) got stopped by the police but he'd forgotten to bring his licence with him. I got turfed out of the taxi in the middle of north London with no idea where the nearest tube station was.