J.K. Rowling is a busy genius and yet, in further proof of her greatness, she routinely takes the time to talk with fans on Twitter. One fan tweeted at Rowling on February 8, citing a problem with Dementors.

In the same day, Rowling—who must receive god only knows how many Twitter notifications—responded to the Harry Potter fan's tweet about feeling depressed.

Sources: h/t: Mashable