Sabotage

What Nymphadora did not know is that while she was in Hogwarts, the person assigned to temporarily take her place did not want to be a temp, he wanted her job permanently, and what better way than to turn Nymphadora into a nymphomaniac who cared more about getting fucked than getting good grades on her NEWT. This would prevent her from graduating and getting her old job back.

Nymphadora settled in a Hogwarts. She was pretty pissed off she had come back and that she had to bunk with a bunch of kids younger than she was. She stowed her goods and went to sleep before her first day of study.

As she slept, her temporary replacement sneaked into her room and laced her perfume, mouthwash, and shampoo with a potion he had bought in Knockturn alley. He then disappeared