Seamus couldn't help but snort and roll his eyes a bit at Malfoy's taunt. He decided not to even dignify it with a response, choosing instead to mimic Neville's stance. He stood back to back with his friend, darting a look at the younger Slytherins before turning back to Malfoy in time to hear his answer to Nev's comment.
"Well, my father has always made sure I have the best, Longbottom," Malfoy looked down his pointy nose at them both, a sneer curling his pale, thin lips. "I don't suppose either of you can say the same about yours, though."
Seamus had had enough. He could barely focus as he heard Malfoy mutter something to his cohorts about 'what could you expect when one was sired by a nutter and the other by a Muggle.' Malfoy's voice seemed to come from a long distance away; the haze of anger that had settled over him seemed to muffle everything else. He was too angry to even remember to use his wand, and before he truly knew what was happening, his fist was connecting with Malfoy's jaw. The crunch brought sound rushing back in full volume and he realized that he'd pretty much blown any chance of them getting out of here easily.