Could it perhaps be mages with the 'crittermorph' glyph causing some mischief? As far as I know, polymorph can come in penguin, baby ape and polar bear flavours.

Howdy. My battletag is Kristian#2627. I don't normally engage in PvP, so expect a poor show of skillz if you want me in your team; I just want that pet. :3 As sixth form has finished for me, I have an extremely flexible schedule, especially on the weekends. I'm usually online from 7pm, UK time. I n...