"Ah. I thought you were referring to the actual bridges to be burned. You can't blow up a spirit certainly."
"How fortunate for him," Q murmurs. "Well, it should have been a dead giveaway," he snaps. "Merlin knows I wanted to bite the man. Or kick him or slap him or something to make him realise what was going on!"
"One of the drawbacks of genius," he comments. "You don't consider the ramifications." Q frowns. "Now Severus, you know what I mean," he says with some asperity. "Gryffindors positively ooze that whole 'death before dishonour' ideal. It's one thing if they're Imperiused, but really, you'd think they wouldn't deliberately have anything to do with the dark side. And," he goes on, somewhat disappointed, "I would have thought Ravenclaws were too intelligent to be Death Eaters."
"He seemed happy enough when I knew him," Q says, somewhat dryly. "Though he had some novel ideas about wands." He wishes he didn't remember that quite so clearly. "Barty Crouch?" Q asks, surprised. "Junior?" he adds. "I doubt it ever would have occurred to him. He thought everyone loved him as much as he did." Q makes an unintelligible reply, not moving away. It is very likely he's momentarily stopped breathing.
"Do you have to use stronger and stronger doses?" he asks clinically. "They reacted badly to the Harmonia potion or to the two of them together?" He snorts. "Reducing pheromones is a laudable goal. I should think it nearly impossible in adolescents." Q nods. "I know. And then there's the intra-house rivalries." Not mentioning any names or any houses specifically. Severus knows exactly what he's talking about. "Ravenclaws were always a bit removed from that. At least when I was at school. Up in our ivory tower."
The Peach Cobbler is also very good. Must raid freezer now. I know there's some B&J in there. Or maybe some Dove bars.