"I'm hopeless at accents I'm afraid," he admits. Q looks helpless. There's not much he can do to right social injustices. "Of course, anyone with a tin ear should be able to recognise Wagner. Pompous git." Q is taken aback by Severus' reaction. "They paid you extra for the service I hope?"
"Including Hagrid?" Q asks pointedly. "Well, we'll burn that bridge when we come to it," he says evenly. "Really?" Severus never ceases to surprise him. "Seen any of his movies?"
Q is trying to remember something about quetzalcoatl, but that synapse appears to have bunked off. "Clayborn is an excellent alias. Very anonymous. Could be anyone." He scratches his nose. "Owl would certainly be faster," he comments. "D'you happen to know where in Kent the owlry might be?"
He says not that far north though. And Q certainly wouldn't have realised that Sev was doing Karkaroff's voice. Sorry for hurting his feelings. :( And in Psycho II by Robert Bloch, the lead character was called Adam Claiborne.