I find books are the best gifts to get your enemies...

I've an aunt whose house is feckin filthy, like I mean every single thing in it is stinking dirty... So, obviously, when you visit you find yourself washing your hands several times... What did Aunt Muck get me one year - Obsessive Compulsive Disorder: A Practical Guide: Naomi Fineberg, Donatella Marazziti, Dan Stein: Amazon.co.uk: Books
It's the "I saw you washing your hands a few times so you must have OCD" gift