The below description is taken from LEGO.com.
Iíve got something here thatíll clean that right up.
Nothing fazes the unflappable Janitor. In the face of spills, stains, and other scenarios much too awful to name, he and his mop are ready to take on every cleaning challenge, whether it be at school, at the office, or even at the zoo. And if a mess should prove too tough for his mighty mopÖwell, thatís what a dependable old rag and a pocketful of sawdust are for.
The Janitor has been at this job for a long time. In fact, those who know him would swear that heís been around pretty much forever. For some reason, though, nobody seems to remember his name. Itís especially weird because itís written right there on his uniform, even if itís just a little bit hard to read. Itís a good thing he just shows up where heís needed, without anyone having to call!