Is there any way to stop them from rattling the cage at night? My bunnies likes to do it at 3 am and doesn't stop til I get up. I don't want to feed them to get them thinking that's what time food will be served. When I first got them they would do it every two hours starting from midnight til 6 am. Then I fed them at night before I got to bed (usually around 11 pm) and they only rattle the cage at around 5:30. But last night was when the 3 am rattling started. Is there any way I can make them stop?