Poses/animations toss avatar when standing up

I'm having this problem with a few items - when standing from using a sitting pose, the avatar is tossed several feet away. I see this mostly with poses that are part of linked objects. Why does this happen and what can I do to prevent it?
(in most of the items I'm using the click broadcaster in the root prim and an updated poseball script that allows for mulitple poses linked into a single object. )

Thanks!

I think it's caused by the avatar is actually inside the prim so when you stand up you get bounced... When you do an animation your AV location doesn't actually move as far as I can tell.. Do one where you walk across the room or something and you'll notice your name will be where you started, not where you are.

This might could be fixed if you make your own animations by having the AV sit lower than where you want the sit local so you could set the sit position up high out of the prim.

This is just my theory though. I haven't tested it, when it bugs me I just make the chair phantom and forget about it.