it was not long after i found a girl smocking i spanked her finished the 100 grade main quest then found herriet and watched her do the misdeeds then latter searched her and found evidence with what aloud me to do what i did. i think if you keep completing quest and raze them stats you will come across it sooner or latter. bts pretty shore herriet is why you loose 5 grade points every week on Monday, she makes it rather irritating to get to the 100 grade mark lol.