BEV as a toad behind diesel pusher

JRscooby wrote:
I will never have a MH or EV but I would like to see discussion of this. So far, the only reason I have seen why it can't be done is Manufacturer does not recommend.
(Years back, friend bought brand new Mack. I was picking him up at dealer, he told service manager the 460 HP would not keep up with my old 425 Cat, Turn it up! "But Roger, it is set as hot as we can and still have a warranty" DU*K THE WARRANTY! I'M NOT SPENDING THIS MUCH TO BE PASSED!) On the keyboard, do we need to worry about warranty?
E cars don't have neutral. If we can keep the parking brake disengaged, that is not a issue, IMHO. Electrically disconnected, a motor can spin with no more harm than running at the same speed. Extra friction? Most toads now in use are 4X4. So when towing you are spinning axles, differentials and driveshafts. And there is more friction ring/pinion when driving the ring instead of pinion. So I can't see a big friction increase spinning the motors.
Braking; I assume EV has a braking system that works pretty much like any other toad. So any system to apply brakes on toad can be adapted to EV. Also, I can't see how it would be real hard to control regen from MH. And holding the weight of both vehicles back on a downhill could put a lot of power in battery. But once full charge that whoa is gone.
Now to get into the most interesting idea. Some new vehicles can follow at a certain distance. Why couldn't things be wired so when MH is full throttle, power is turned on, so the toad pulls it's own weight? Or even push the MH some?