Ugh,.. your post, so reminded me of the nonsense I went through, when I first got my bun… the little turd, drove me bats@*t crazy.. he would constantly rearrange his box, and get under it, and tip it.. SEVERAL times a day..
After 2 or 3 days of cleaning it up, nonstop,.. I marched my fanny right down to Home Depot, and got some big drill bits, washers, and bolted his tray to his cage
… I was over the moon, pleased with myself that I had outwitted this rabbit,… he got the last laugh haha… he would spray his urine OVER the back edge of his pan, and… pure yuck would ensue..xD = 5 times the more work it caused me overall lol.. — My first problem was this though – I wasn’t using a high back litter tray at that time.
Anyhow,.. I changed his cage completely,.. got rid of the cage, all together, and went for a 5 panel metal bar baby gate, for his house.. and a high back, corner litter pan,.. now, I just use a bread tie to keep it in place, and, he never tips it.. he does dig in it every other day, when I put in fresh pellets, but,.. that is damage control, that I can deal with
.. I think maybe neutering helped my case some too.
Sorry the long post,.. I just feel your pain, when you posted your thread.. it can be such a PITA,.. I hope you find something that works out for you guys! ~ cheers