Seems when a unit goes into panic or vacates a tank it starts doing endless throw grenade animations whilst running all over the place..obviously no grenade thrown though. The running is fine but the grenade throw animation looks silly, I mean there is panic and then there is totally insane..and they look totally insane:) I expect it's not supposed to do that.
Yes I noticed that too woden, happened a lot. I expect it will be fixed in a patch.