Abstract: An assembly and method for conditioning a pet to utilize a toilet when making waste. A primary tray is provided. The primary tray has a first depression, wherein a primary opening is formed in the depression. A plurality of inserts are provided. The inserts progress in size. Each of the inserts defines a central opening that is proportional to the size of the insert. The primary tray is placed on the toilet. The primary opening within the primary tray is covered by the inserts. Litter is added into the depression of the primary tray to entice the pet to utilize the primary tray as a litter box. Over a period of time, the pet will become accustomed to jumping onto the primary tray to make waste. The inserts are removed one at a time. This slowly uncovers the primary opening over a period of time as a pet is conditioned.

Abstract: An assembly and method for conditioning a pet to utilize a toilet when making waste. A primary tray is provided. The primary tray has a first depression, wherein a primary opening is formed in the depression. A plurality of inserts are provided. The inserts progress in size. Each of the inserts defines a central opening that is proportional to the size of the insert. The primary tray is placed on the toilet. The primary opening within the primary tray is covered by the inserts. Litter is added into the depression of the primary tray to entice the pet to utilize the primary tray as a litter box. Over a period of time, the pet will become accustomed to jumping onto the primary tray to make waste. The inserts are removed one at a time. This slowly uncovers the primary opening over a period of time as a pet is conditioned.

Abstract: A system and method of customizing a flush toilet to help train an animal to utilize the toilet when making waste. A primary tray is provided. The primary tray is placed over the toilet. An opening is formed in the primary tray. If a pet in training becomes tentative, the opening is reduced in size or eliminated by the use of a supplemental tray. The supplemental tray is sized to cover only the part of the primary tray that holds litter. With the litter removed, the supplemental tray is placed atop or under the primary tray. If no opening is desired, no opening is formed. If a smaller opening is desired, an opening of the appropriate size is made in the supplemental tray. The supplemental tray is then filled with litter and is used to train an animal as if it were part of the primary tray.