He leads me to the kitchen, angrily pokes his food bag twice with his snout and then just sits and stares at it.
Or I will find him standing in front of the food bag, his head looking at me but his body aimed at the food bag. He's an excellent communicator.
Vague feelings? I think your feelings are pretty spot-on, farming an animal whose population is already excessive in the wild is bizarre.
Wild deer are more environmentally friendly than farmed deer.