The toad hit the motorhome because, contrary to the OP's statement, the toad's brakes were not applied. It's obvious that if the toad's brakes were applied, the toad would have been slowed to the point that it would have been at max length of the remaining tow bar arm. My only guess is that either the driver let off the brakes either during the slow down period or after stopping....both releasing the toad's brakes allowing it to coast forward into the motor home. I guess another possibility would be that he had the toad's supplemental brake system turned to low so that the toad's brakes weren't activated.
With this adjustable system (US Gear Unified Brake System), you must find a happy medium on the adjustable control so that the toad's brakes won't be set so high that you will be dragging the brakes and conversely, not so low that the brakes will only be activated during a panic stop.......which maybe the OP's DH had done.
Ron
