Wayne, I'm married to her.
It was an accident. She posted a thread about it after she dropped my laptop with the case open, shattering the display.
John, mine don't totally lock up with the controller, either. But pulling the emergency brake locks them solid. I did that accidentally once pulling into a pullthrough site when the emergency brake cord caught on something and tripped the brake. Our rig was hanging out in the access road and the V10 Ford couldn't budget that trailer in either direction. Eventually we figured out what happened.