Obviously I couldn't possibly recommend such a dangerous practice, but the risk can be mitigated if you (1) know the road and are prepared to believe there are no new potholes since yesterday, (2) choose a vehicle which is unlikely to stop suddenly, like a bus (driver won't want to make all the passengers fall over)Drafting a large vehicle is a recipe for disaster as you cannot see what is happening in front of the vehicle and the driver cannot see you.
Still probably only a pastime for the young and immortal, though