There was this movie I watched when I was young that I can’t find for the life of me.  Basically it was about germs and they were troll looking creatures that could talk.  They would go to classes about being dirty and stuff, then at night, they would sneak into humans houses and make the messy. This germ dad took his germ son with him one day because he was getting to the age where he would start going into people’s houses.  I remember one scene where the dad had like this thermos full of gross stuff that he drank. The son didn’t like being dirty though, he wanted to be clean.  My sister remembers the germ son meeting a human girl and becoming friends or something? I don’t know but we’ve searched for this movie for so long and if you know it I’d be very grateful if you told me.