Greyson here to report a Parental Violation.
So Quill and I have two litter boxes, but we both prefer the one closest to Mom. We are big fans of the clumping sand litter. We prefer Mom run a pretty tight ship and scoop two to three times daily. She's like a Litter Ninja - swooping in to scoop almost immediately.
All of a sudden she had this hair-brained idea to try a crystal litter. Dad was rightfully against the idea - why mess with a good thing. Mom was all "I'd like to scoop less" - can you imagine!
Finally she got her way to try a bag. Dad just emptied our box (luckily not our favorite) and put in the new litter. No mixing of litters to warm us up to the idea. Finally Mom went and stood by the scary box and let us sniff the litter, but we both have refused to use it.
Naturally we've doubled up in the box closest to Mom.