After going through the door, you follow a long corridor that doesn't seem to lead to anywhere in particular. It doesn't seem to be used all that much, either, being all dusty and filled with cobwebs. Fortunately, the stillness makes it very easy to hear the noise of something very large, metallic and unpleasant behind you. Oh no! It's THE CLEANERS! (http://www.youtube.com/watch?v=iDfxjg8ZTWo#t=1m50s)

Link leads to a Youtube clip. Feel free to attempt to fight or outwit the Cleaners as well! Just because Sarah and Hoggle run doesn't mean you have to--though you still can!