Frank was outside once right after I started volunteering and a low-flying helicopter cruised over the rescue property. Frank...who at that time really really disliked humans creeped over to position himself as close to my feet as he could get. I was a much safer (even though he thoroughly disliked me) refuge to him than whatever it was that was making all that noise up in the sky. Heck, I might even protect him. Or...at least that's my speculation about what he was thinking.
Frank also exhibits one of the most common activities of the bunnies. When their enclosure is being cleaned they will often be released to run freely around in the building where they are housed. Most of the bunnies (not all of them, but most) will, upon being given freedom to roam the whole building, immediately head toward one or more of their neighbors to settle some scores. A slapping, growling and sometimes biting spat will immediately erupt. It's one of the darndest things I've ever seen. You would think they would want to run and explore after being released from confinement to a fairly small area...nope...they want to go kick some a**. Frank particularly dislikes his neighbor Abigail who lives in the back of his area. He and Abigail have serious differences and they both, if they have the chance, will tangle.
I fantasize that they say mean things to one or fart or engage in annoying habits while they are housed next to one another and when they get the opportunity to go after whomever has offended them...well...then yeeehaaaw. I've seen this so often from so many different bunnies that I've decided that one way to make a rabbit dislike another rabbit is to house them side by side for a lengthy period of time. The odds are high that they will develop quite a dislike for each other. Not always...some buns are pretty laid back and don't do this...but the majority develop some serious antipathy for their neighbors and will get into a real spat if they get the chance.
Putting living beings in close proximity to one another (and their having no choice in the matter) almost always will result in instances of antipathy...that goes for humans and for rabbits...and I betcha it goes for chickens and ducks and cows and donkeys and and and.
Saying all this to say...it sometimes makes me want to weep to think about how thoroughly and completely we've gone about convincing ourselves that the excellent beings with whom we share this beautiful planet are "different" than us. It's one of the most incredible con jobs ever successfully undertaken. Here's a broad statement that carries more accuracy than error: All living beings are more alike than they are different. Period. And yet...we walk around in a fog of human supremacist bushwa. We are truly the delusional species.
Wake up...live vegan if you aren't...and if you are then thank you. Only delusion or profound ignorance or horrid personality issues would cause you to live any other way.