Disconnecting from the controller, never regaining signal, overshooting the home point on RTH, then landing in a traffic lane, that definitely happened. And the drone did narrowly avoid becoming a fatality. Had some kind person not seen the drone land in the street and removed it to safety just 10 seconds before a car passed through, this story would have had a very different (and very sad) ending. Moral of the story? Don't let your kids play (or land) in the street.
Some time later, I thought about what MIGHT have been had the car actually hit it. Like you, I pictured a scene straight out of Monty Python where the drone looses all contact and (against all odds) makes the long, perilous, flight back home over a large body of water, lands safely, only to be smashed to pieces by an oncoming car. I replay the actual flight video occasional just to remind me of what CAN go wrong.