[Beanamir of Gondor]

Well, there's always that tried-and-true method: turn tail and run into the enchanted forest that's going to eat you.

Come on. You've got a blonde guy on a horse screaming "Guthwine! Guthwine!" and brandishing a gigantic sword named precisely that, some old white-haired guy flashing beams of light from the end of a long stick (and wiping out fifteen orcs with one swift stroke of his own sword), and thirty million kajillion fazillion guys on horses racing down an hill screaming, with light beaming from behind their heads. Speaking of which, does anybody happen to know (offhand) the inertia of a Rohirrim rider and his horse if they race down an eighty-degree slope at ninety kilometres an hour?

Anyway, if I was one of them there Uruks, I'd totally run. Not necessarily into Fangorn, mind you... =D