The GIGANTIC Litter Box

When the kids were small we had them share three litter box but some people (namely Alexander and Victoria II) doesn't know how to do their job properly, every time there would be litter sand all around the bathroom making it difficult for us to clean. Gabby to would sometime do her thing outside the box because it had somehow become to small for her. 

It's 1/4 the Size of the Bathroom

So as a solution, we bought a really GIGANTIC litter box, not from the pet shop (they don't have this kind, really) but from the local plastic-ware shop near KL zoo. It has costs us RM70 and everyone now shares this huge poo-poo box happily ever after.

I wonder if they get any bigger (not impossible especially for Napoleon) would we need to build a pool-sized litter box in the batroom instead?