HBO slaps takedown demand on 13-year-old girl's painting because it used 'Winter is coming'

It turns out King Joffrey isn't the biggest scumbag at HBO after all. A father says lawyers at the cable TV network demanded his 13-year-old daughter's artwork be taken off the internet after she drew a lovely picture titled "winter is coming" and posted the image to arts'n'craft website RedBubble. "My daughter, who happens …