NOW YOU WILL BE CHEERFUL.
Sorry, sorry, listings have been grim lately. Here! Cheerful! So CHEERFUL! GRITTED TEETH CHEERFUL! BE CHEERFUL, DAMN IT! NO GROCERIES UNTIL YOU'RE CHEERFUL!
(From a listing found earlier by Solvi.)

toilet: Do you think anyone's noticed we've snuck into the living room?
tub: Shhhh! Just act natural. Dum de dum de dum...
sink: OH HAI GUYS WHAT ARE YOU DOING

Unfortunately I can't read the listing, so I don't know if they accept World of Warcraft gold for the rent. Perhaps they prefer Sims money? Or pac-dots?

I swear, there are scientists in labcoats sitting just out of the shot, clipboards in hand, ready to take notes on how long it takes you to... um... do laundry, if you're lucky.