People anthropomorphize too much. The rabbit's reaction is the same one he does when coyote is tearing him to pieces or a hawk nabs him or a bobcat pounces on him. It's not a human response. I've picked up tame rabbits that did this before, made me think about taking one coyote hunting, LOL. I raise rabbits for a while, thinkin' the kid would wanna do rabbits in 4H, didn't happen. Oh well, I ate 'em.
Anyway, I'm like Art except ain't THAT old.
I started hunting with my Benjamin .22 pellet rifle (air gun, pump up type) at age 7 after i got it for Christmas. I also got a Benjamin .22 pistol not long after and got a holster custom made for it. My mom worked at a prison unit and an inmate there would make custom holsters, all you needed do was trace the gun on a piece of paper for him.
So, I'm out in the woods one day, come upon a rabbit standing there, big swamp rabbit. I shot him in the head, just knocked him silly. He stumbled around, I popped him in the head with the pistol. Not much affect from the pistol, kinda wimpy. Pumped the rifle up for two more shots to the head before the thing finally quit kicking. I was so excited I spilled half the can of pellets on the ground reloading. I brought it to my grandpa all proud.
I guess when you're young, you have fewer pre-conceived notions of morals or such. You don't anthropomorphize that easily unless you've been spoon fed Disney movies or something, I never was. I never saw "Bambi" until I was grown.
Anyway, I was practically born to it. I'm not sure if one can just take up the sport as an adult. I suppose it can happen to someone who's really into the survival thing or something. I think it's better to be born to it, though. I have lots of good memories of hunting when I was young. I know I'd have it no other way. I was so crazy about it, I decided to major in Wildlife and fisheries Science in school, not realizing I probably wouldn't get a job.
I just thought about being afield all day and getting paid for it. Well, I wound up in a lab analyzing waste effluent from a chemical plant for a living.
Whatever, you have to deal with such things on your own. Nothing we can tell you can possibly matter. If it ain't for you, don't do it, but just remember, nature is cruel, you're living an insulated life in the city. You can't possibly relate to how hard it is to get along as an herbivore just above grass in the food web. MOST rabbits in nature do not grow up. Few die of old age. You did that rabbit a favor. He coulda been caught by a hawk, woulda been a lot worse!