Justin jumped at the voice behind him as he'd been completely focused on looking over the books. "Merlin, scare a bloke to death, why don't you."
The man standing behind him could definitely be described as 'creepy', but Justin didn't let it bother him. He'd shagged far creepier.
"Yeah, I'm looking to see if there's some kind of book on wizard sex practices or something. Bonus if I can find something on alerting or warning charms for a project a friend's working on. And no, the two aren't related." He smirked. "I didn't know Madame Pince had hired any help. How long have you been working here?"