thanks for all the comments.
Re: the asparagus. oh we paid for giving him that! phew! that's why i was wondering, i didn't want to upset his digestive tract, but other than the very bad gas he seemed quite unaffected.
As for the bunnies, he was raised with them, and has always been ok with them. he has never yet tried to harm one of my domestics. Dan, all wild bunnies are fair game, he will chase to kill. but just snuggles the pets. He knows the difference, so far. When he was tiny, i was also breeding rabbits for the local 4H, and had over 100 rabbits at one time. The only time Zumi got fresh with any of the bunnies was with Missy Bun at their first meeting. he "smacked" her, and she kicked him right back… they are now good friends :)
i attached a few more pics of him when he was very small meeting some of his first bunnies. Both Missy Ben, and our sadly departed Ben.
and yes! he absolutely does groom them. its quite cute watching him lick them and nibble the fur like he is getting buggies out, lol. Missy Bun even licked his foot last night, grooming him back.