Bunny business

Last night, on my way to rehearsal, I saw a woman walking her dog. From a distance the dog seemed to be moving in a slightly odd, and very slow, manner; something which was explained when I got a bit closer and realised that it was, in fact, a large black rabbit on a leash. Thinking that this was was one of the strangest things I'd seen in...ooh...a couple of days, I turned up at rehearsal and gleefully told one of my fellow cast members about it, only to be met with the response "Aw, how lovely. I used to do that with my rabbit". Surely this isn't ordinary behaviour? Is it?