An Australian woman has invented a 3-step toilet training system for cats called the "Litter-Kwitter." Jo Lapidge successfully taught her family's Burmese cat, Doogal, to use the toilet.

The Litter-Kwitter starts with a red toilet seat-shaped disc filled with cat litter and sitting on the floor next to the toilet, like a normal tray. Next the red disc is placed on the toilet so the cat can get used to jumping up onto the seat.

Then the red disc is replaced with an amber disc with a small hole. When the cat is accustomed to the water below, the amber disc is replaced with a green disc which has a larger hole. The cats are eventually able to use the toilet.

"Because the water covers the smell, it makes the burying or covering up instinct redundant ... To fully train Doogal it took about eight weeks," said Lapidge, adding that she hopes to start manufacturing the Litter-Kwitter soon.