Today I got in the mail this card with the following inscribed:
"Dear Uncle Sean,
Thank you so much for my doctor books. I really love the pictures, especially of the bloody heart. I really like everything doctor and I have been taking my books everywhere. Mommy really likes to see the disgust on people's faces when they realize what they are looking at. Ever since we dissected the cow eye, I want to see pictures of increasingly gross things. We are glad you were there at the start of it all. "
I think I should win a prize for not only best uncle but best brother-in-law. Not only did I get the kid what she wanted but the gift was so good that my sister-in-law gets to use it too - to gross other people out. Go me.