Recently our two cats have been using the floor around their litter box for toileting, rather than using the box. The only thing that has changed is that we have just switched to using plastic liners instead of newspaper sheets in their tray, as they make cleaning easier and lessen odours and stains. However, our Siamese sometimes gets neurotic and attention seeking, so maybe she is the culprit! Although, we aren't sure if they both do it. Please, can you help us find a solution to this problem so that everybody is happy? Thank you!