Tuidjy, for all the reasons you don't like the bunnies, I think they add to the game.
And yes, some have restorative properties.
I agree with you Cyberis, that I can't see myself trying to restore 500 hp petting bunnies. I have been thinking of late that maybe a degree of healing could be used. The more healing that needs to be done, the more points are restored with each pet? Of course that may throw things out of balance...