I only ever give them their food at night, for the very reason of getting them in, however I dont think they have been very hungry as there have been pellets left in the bowl in the morning. I finally went out for the last time at 11.30 last night,, to find the boys huddled together on their bed, so I was able to shut the door. Im glad I did as it went below freezing, and I just know I wouldnt have slept soundly had they not been locked up. Its good to know though that it is acceptable to not shut them in. Their house is fully insulated, and their bed is off the ground and their coats are so thick its amazing. Still as a novice, its still worrying when they play up. Im not even going to try and get them in before 9pm tonight, to see how that goes!