Recently a cat wandered into our house. We tried to find its owners but to no avail. Now the cat lives with us but it will only "partially" use the litter box. In other words it will do number 1 in the litter box but wont do number 2 in it. Is there any way I can at least try to get the cat to go both number 1 & 2 in the litter box? Would appreciate the help.