The Horde Needs More Tin Bars!
Bring 20 tin bars to Grunt Maug in Durotar.
Very good, I see that you are serious about the war. I'm a little edgy waiting for it to start though, which means I'm going to get angry if you don't start bringing in the goods faster. Maybe I can just practice on you instead.
Har! Maybe not, 'cuz then who would bring me back the tin bars?
Throm'ka, <name>. You honor me and the Horde with your tin bars. I will put them on the stack and then they will come and make things from them. And then when that is all done we will go to war and show the puny Alliance how to fight the bugs.
Now bring me back more tin bars!