Hey, just found this out while waiting for que's outside org.
As a shaman if you use [Far Sight] on a zeplin right before it disapears to go into loading screen (without you on it) And it disapears before the cast is finished. You will get stuck in casting animation on yours, and anyone near you when you did it's screens.
Standing on the TB/Northrend zep tower while doing it will just cause your screen to go into Stonetalon Mounts. So dont do it up there.