In seriousness though, I have had a rabbit do that or nip at my hip before. I think it’s a bit like how they tell off another rabbit (when bonded to it) if they’re a bit annoyed or if it’s in their way. They nip at the bottom area. It’s a way to communicate without really hurting the other rabbit.
Back when Jersey was alive and I let her and Rumball roam outside, I would sit on the back step watching them. They’d come and go as they pleased. I remember Rumball would approach me to hop back outside and decide he wanted to go through the small gap on one side of me instead of the generous gap on the other side.
So he’d nip my hip as he squeezed past. I suppose it was his way of saying “I don’t like that you are obscuring the doorway”. lol
Rabbits can be territorial about their litter boxes. Everytime I take out Potamus and Gooseman’s box, Potamus will come over and pee on the floor where it was. She rarely pees out of the box otherwise.