J.D.
My cat is 7 years old and a picky one at times. If his litter box is not cleaned every 2 days he will not use it! So rather than cleaning up a bunch of messes I keep it clean. Also when we change little or litter box locations he gets fussy and puts up a fuss and won't use it till we either fix the problem or move his box back. We had moved it to the laundry room so that we could not have it in the guest roon any longer and all the traffice of people and the machines scared him and he would not use it. :( Those are the problems our cat has had. When we take the top off his box he won't use it either. LOL