ok, i have to work night shift some times and dont want to put my chickens up when i leave at 3pm for work. However, i worry about them with the coop door open all night for obvious safety reasons as wwell as to keep the upcoming cold out. My DW ha an idea to put up a plastic or rubber screen over the coop door. One like a walk in refrigerator plastic screen thiat hangs in strips, do you know what i mean? anyway, would the chickens walk though it? can you teach em too? I know it wouldnt help with safety, but it would help with the cold i think. Any ideas or sugestions?