I posted this on the Five in a Row boards last week...  (December 27th)

We got a bunny around mid-September or so. We got it from DH's brother & his kids. He is divorced so his kids weren't there very often to play with it, and it was in a small cage outside by itself. We got it & bought a lot of nice things for it, and kept it in a playpen-type cage in the floor of our bathroom (the toilet is in a separate area). We took her out from time to time too to play with her & pet & cuddle her & let her run around the house (supervised of course). I am sure we spoiled her.

Well, a few weeks ago she started having some bleeding from her bottom area and we weren't sure what it was. That was when I posted asking if rabbits had menstrual-type bleeding. Well, it wasn't a whole lot but enough for us to be concerned and when it hadn't stopped after more than a week, DH & kids took her to the vet (one week ago today). We have never used this vet before. He called the one he was familiar with but they said he didn't treat rabbits. Anyway, the vet said Oreo had worms & gave wormer, plus said it might have an intestinal infection from that & gave an antibiotic called Albon.

Well, a day or so after they came back from the vet, the bleeding seemed worse that ever. Then it was Christmas eve & we had to leave to go out of town for 2 nights. We left Oreo with some fresh lettuce & a full bowl of rabbit pellets, and a large container of fresh water, and a clean litterbox, so she should have been fine.

Well, there was more blood all over the floor when we got back (yesterday around 6 p.m. or so) and she hadn't even appeared to touch her food, and she also hadn't really used the litterbox either (so she wasn't eating or eliminating). DH planned to take her back to the vet today.

Well, now he just came in & asked if I had looked at the bunny yet this morning & I hadn't because it was still dark when I got up & used the bathroom this morning. When he asked me that though somehow I just knew what he was going to say. How do we tell our kids??? I feel so terribly guilty, like we did something wrong that caused this to happen.

And, this bunny did belong to the girls' favorite cousins, are they going to think we killed their poor bunny? Matt's brother had his kids last week up to Christmas night, so it will probably be a couple of weeks or more before they come back this way (they live about 2 hours away).
We did take her to the vet. Is there something else we should have done?

Now I am angry and upset and wondering if the vet could have misdiagnosed her or something. Ugh, I am just upset all around this morning. Please, any advice (and quickly) would be good. We locked the bathroom door for now so the girls wouldn't see her.

As an update to this...

Well, I sat down with them and explained it, and everyone cried (even Michael, though I suspect he only cried because everyone else was crying). Elizabeth was especially upset about it and kept saying over and over again that the bunny was her favorite pet. This is their first time to really experience death. Right now they are all going to go outside with dad to help pick out a place to bury him. I just cannot get over how upsetting this is to Elizabeth.

And finally...

We did bury her under a tree in the side yard.  DH dug the hole and the kids helped him put the dirt back in over the bunny.  Elizabeth sang a sweet song, over and over "Our poor bunny, he died..." and it was very sad.  It has been a few days now though and they seem better, though I did cry yesterday because I thought to myself (in my head) that we had to be sure we bought more hay for the bunny (something we were always  having to do) and then realized we didn't need it anymore. 

Elizabeth already wants to get a new pet.  We just aren't ready for another one right now though.  We do have 2 cats and a fish which we've had for a long time.  We hadn't really had Oreo the bunny that long, only a few months.  We've had our cats for over 8 years, and it will be a devastating day for all when one of them passes.