Cleaning out the Bin

Dad: I thought Sneakers was peeing everywhere because his litter box was a solid block but he’s still doing it.
Me: When did you clean out his bin?
Dad: Two, three weeks ago.
Me: You have to do it more often, probably weekly.
Dad: Why would people put up with that?
Me: Well, you changed diapers a few times a day for years.
Dad: Good point.  I like the cat more than most babies.  I can change the litter once a week.