MJ loves digging (on my wooden floor!) I've tried filling a big plastic box with hay and he just sits in it and eats it and I've made a hole in an even bigger cardboard box with loads of shredded paper, some treats for encouragement, a little window, a towel hanging from the celling and he just doesn't get that it's for digging, I've put it in the same corner he usually digs and he just digs around it how can I make him love it - or something!