We have a problem with neighbourhood cats coming in and eating our cats' food, which is situated in the passage. In winter we solved the problem by shutting them in at night. When the weather started turning warmer, grey girl decided she would like to go out in the early hours and started waking DH up, much to his disgust. So he partially solved the problem by leaving the window open for them and putting the food next to his bed, covered up. When grey girl comes and asks for food in the night he wakes up just enough to remove the cover. So far so good. Then the girls decided they can only eat next to the bed when it's dark so as soon as it starts getting light in the mornings they demand that the food is moved to the passage... it gets worse. Last night DH forgot to move the food to his bedside. At 3:00 grey girl woke him up, complaining that there wasn't food in the correct place. Got to love cats!