Well sh*t.

My suspicions were right.

I moved too fast, over-eager to progress beyond the oh-my-god-how-the-bathroom-stinks stage to the plippety-plop-of-excretions-in-the-toilet-bowl stage.

Phoebe (to my complete surprise, she's the 'I'm so good and cute' cat, and the more intelligent of the two) displayed her disapproval of my increasing the size of the hole in the litter tray to about 2 inches in diameter by crapping in the goddamn bath!

Crapola.

But I have a solution (I hope!).

I have put about an inch depth of water in the bath to prevent any further unwanted gifts.

Can't uncut a hole so...

Maybe the litter was too thin?

So I've added a litter (hah! little) extra litter for, um, 'comfort' I guess.

Ok I'm going to bed to cry myself to sleep! :'(