Click here to see the hidden message (It might contain spoilers)
When Draco voluntarily left the Hogwart's group to be with his parents, and Voldemort gave him a hug, and it was all awkward and angular and uncomfortable, someone behind me went "It's like Sheldon!"
Also, Dinosaur Comics offers great advice about Wizards: http://www.qwantz.com/index.php?comic=1988
"I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain."
-Bene Gesserit Litany Against Fear