More than one cat may be involved, and it should be remembered that, in some cases, the culprit for indoor marking may not be a resident cat at all. Intact male cats and despots may enter the homes of other cats to take food, and then leave urine marks within the home. In these cases, treating the resident cats will have no effect on the marking behaviour and, in fact, increasing the level of resources available within the home may raise its value and therefore encourage the despot to try to take it over. In such circumstances, an electronic coded cat-door would need to be fitted. | More than one cat may be involved, and it should be remembered that, in some cases, the culprit for indoor marking may not be a resident cat at all. Intact male cats and despots may enter the homes of other cats to take food, and then leave urine marks within the home. In these cases, treating the resident cats will have no effect on the marking behaviour and, in fact, increasing the level of resources available within the home may raise its value and therefore encourage the despot to try to take it over. In such circumstances, an electronic coded cat-door would need to be fitted. |