It is pretty easy to let these things get dirty, especially if your sim is a slob. The next part is to let 3 of your bathroom or kitchen objects get dirty, this includes any counters, plumbing items (i.e., toilets, sinks) or your stove top. You’ll know its gone bad when it starts having a green stink coming from it. The first few parts of this aspiration are rather easy, the first thing you’ll need to do is let out food to spoil which can be done by leaving any food on the counter for an extended period of time until it goes bad. Max Out Sim’s Fun Motive While on a Dusty, Dirty, or Filthy Floor.Let At least One Floor Level of Your Home Become Dirty.Let 3 Kitchen or Bathroom Objects Get Dirty.
Be prepared to be virtually grossed out by your sim’s surroundings. In these stages you’ll need to get your sim’s house absolutely filthy and not even attempt to clean it yourself, nobody has time for that. There are 4 stages of this aspiration that your sim is going to need to work on, and they are all… well, filthy.