Everything was going well. There had been no need to make the Wargs run the tower, as the tree-chopper on the front had been mowing down Mirkwood steadily and feeding the trees into the steam engine for quite a while. The Orth-Tank was almost out of Mirkwood when suddenly...
Putt-putt-putt-putt-putt-PUTTOOIE!!!
The engine stopped, causing the massive tower to shake violently back and forth.
"
WHAT IS GOING ON HERE, YOU PITIFUL EXCUSE FOR A SERVANT?!" boomed Saruman's voice as the wizard charged downstairs.
"Duh? Guh? Bumble-bluh?" was all Wormtongue could stammer as he woke up to repeated whacking from Saruman's staff.
"Never mind," Saruman grumbled as he inspected the workings of Orth-Tank.
"YOU INCOMPETENT FOOL!" he shouted.
Grima responded with his wittiest "Huh?"
"I don't suppose you could tell me where all these rats came from? You forgot to clean out the pipes like I've been telling you to. You're going to be Warg-fodder if you don't find a way to get these rats out of here!" The wizard really meant business.
"Maybe we could put a big plate of cheese for the rats outside? Make it extra-stinky so they'll know where to find it. Oh, and poison it as well so they won't come back. Either that, or we could flood the pipes with rat poison," Worm offered.