Pearl: Attention, kittens! Today's lesson is that you must always use the litterbox right after your human cleans it. This shows your human that you appreciate their efforts. Can you think of any other reasons you should do this? Yes, Liam?
Liam: Cos ye 'ave to go?
Pearl: Ummm. No. Next? Oh, wait! Here comes the Mama to clean your litterboxes. This would be a good time to practice. Ok, she has one box done. Now the other. Go! Kittens! Go! Great job Liam! Way to crowd in there Otto! Looks like there is still room for you, Asha. Ok, now your turns Giovanni and Cosette. Great job! You all get an A for today.
And yes, all five of the kittens used the litterbox within seconds after the Mama cleaned it.