Sound proofing is a wonderful thing that can be enhanced with a suitable application of spells. Should Integra ever worry about that, both Sebastian and Malfoy could probably suggest a whole host of charms. Ahem.

"I'd be happy to return, but you're still welcome to try and bribe me. Although, I should warn you, I can't stand chocolate," he says with smile that reaches his eyes. It says something about him that his default bribe is something harmless like sweets. "Without access to my vault here, I'll have to adjust my figures to show equipment rental."