In Eye of the Storm, I will play on my elemental shaman and my buddy will play on his blood death knight. We run up behind Mage Tower and lure Alliance back. I either shoot them off with thunderstorm or my friend jumps down to a spot where you don't fall to your death, but you can't get back up and into the fight. He'll then death grip people down there. They invariably get pissed and end up jumping to their death. The first time we did this, he caused maybe 8 or 9 people to commit suicide, while I sent people flying over his head.
During Thanksgiving, there's a daily quest that forces you to be PvP flagged. This is the only time we get world PvP on our RP server. I'd go to Stormwind on my shaman and lure people up into the mountains. My goal was to shoot them off a peak to an area where they couldn't run to as a ghost. This would usually instigate some really fun battles.