Getting Lvl 10 Warrior Quest back.Follow

I got my lvl warrior quest from the warrior trainer in Goldshire. I had to talk to a guy in a pub in Stormwind. I talked to him, and he told me to take a mug from a nearby drunkard. Of course, I had to fight him for the mug. After attacking the drunkard, I got low on health and ran. I escaped, but with a failed quest. I could not get the quest back from the first guy in the pub, so I deleted the quest. The Goldshire trainer also will not give me the quest. How do I get this quest back? This reward for this quest is Defensive Stance.

Contact a GM. Only other thing I can think of is logging off and logging back on, but you probably already did that.