Everything I have read suggests that neutering is definitely the thing to do, not only for better bunny behavior but better health too. I would get him fixed ASAP. I have little doubt that it will improve his behavior a lot. He’s probably hormonal to the max!

Does he have a litterbox? Try getting a couple of them and putting them around the room in which he plays. That way, he won’t have to go far if he needs to use one.

What does everyone else think?

Yup, have him neutered. First step.

i’ll third the suggestion for neutering peanut!  there is a very high chance that it will help substantially for both the aggressive behavior AND the messy litter habits.  i had a bun who was never spayed and she had terrible litter habits her whole life.  my bun pinky was spayed and she hasn’t peed outside of her litter ever since!  she very seldomly leaves a poop out of her litter.  there are health benefits to spaying / neutering too.

in the meantime you can do things to help make living with peanut a little easier.  like lizzie recommends, if there is a spot or two where he piddles when out for playing you can put a seperate litter pan there while he’s out.  i used several strategically placed litters for baby bun.  it was fairly easy since she liked to pee in corners so i bought a few plastic food containers (8″x8″ and only about 2″ deep) from the dollar store and put them in her corners.  they came with lids so when she was in her enclosure i just cleaned them, kept fresh litter ready to go, popped the lids on and tucked them away.  she also liked to pee on my area rug so i took to laying out a cloth drop sheet while she was out that could be laundered if she  peed on it.

since rabbits can be pretty picky about keeping their space private it may be best to clean while peanut is out & about.  if you have to reach into peanut’s cage while he’s in it try approaching very slowly and not from directly above him.

good luck!

How old is Peanut? Neutering should absolutely help these behaviours. It’s a catch 22 if you’re having to keep him in the cage more because he soils the house too much, as he’ll get more ansty. Can you put down a waterproof sheet like a tarpaulin in the living area with a pen around it? If so, put a litter box there in there too. He can get exercise this way and work on litter training. But having him fixed will make things easier.

agreed neutering will definitely help  may want to do it soon b4 bad habits stick with him.

As far as $ you can call around for a good rabbit savvy vet and get prices    Also the humane societies in your area may know of a low cost vet.  Or even some societies do it there for bunnies.

In case $ is an issue I hope that helps.

I’m not no expert but out of my own experience and being a bun volunteer at a bun rescue in the past,  yes neuturing will make a world of difference, you will see. I’ve had buns that were not neutured when I got them and some already neutured and it is a big difference. It is certainly not cheap to have it done, no different then having your dog neutured, but it is worth it. After surgery, the change will not happen over night, it may take a couple of weeks before you really notice the difference but don’t give up and along with the potty changing habits also will be personality changes, both positive. Right now I have a baby bun (4 months old) and I am having a little time trying to get him to use his litter box. He will not be able to be neutured until he is 6 months so trying to get him potty trained will be extra challenging for me. Don’t give up and good luck.