Ever since Cataclysm, the attacks have all but stopped, probably to do with buffed up guards, different city layouts, or something. This troper played a Rogue (forget what level he was at the time) during a battleground at Arathi Basin. The Alliance just took the lumbermill and we were busy fighting off some of the horde trying to take it back, and at one point I was fighing a Horde Member near the cliff's edge close to the flag. I was getting low on health, so to buy time, I used the Blind ability to make my target stagger around for a few seconds while I bandaged myself quickly. In a
surprising twist, the aforementioned blind Horde was staggering around so much he actually walked right OFF the cliff and died on the bottom. And I still got credit for the kill!