As perhaps one of the few engineers that do pushbacks nowadays I am horrified to read that doors are some times open during a push. Before I commence a push back I check that all doors and panels are closed and confirm this to the flight crew. In the event there is paperwork still on board, the crew usually throw it down to me from the DV window, either before OR after the push. A question I ask is why didn't the cabin crew contact the F/D that they wanted to open/close the door? What happened to C/C to F/D communications? Why didn't the F/D stop the push when the door warning light illuminated?