Could it be that said filthy toddler is in a bad mood? I've had toddlers be obstinate over many a thing. Generally, it's when asked to use the Potty chair. A moment later, the kid will acquiesce. Mostly, I have the parent scold the child, Give a Talking To. I've never had to spend half an hour (game time or real time) getting the little twerp to do as bid. So sorry to hear your game toddlers are more stubborn than any of mine have been. The next time this occurs, check out their mood. Also, there is an interaction to Clean Up, which for the most part is for their hands and face after eating, true enough, but it might go a long way to appeasing a rotten mood. Best of luck.