I have one that I consider my favorite. Was in the Non-CP Cyrodiil at Bruma doing the daily quests during Whitestrakes on my NB. Three other NB's ganked me when I was turning in a quest. I came back, snuck in and hit a detect pot and killed all three. I then stealthed out and waited for them to gank someone else figuring they would be back.

I saw them come back in and they then stealthed out. Another player came in and was doing the quests where you close the portals inside the quest givers building. I popped a detect pot and found them sneaking up on the lone quester and killed two of them and one got away.

I waited for him to rez his buddies and killed them again. They didn't come back for some reason.