Seamus ambled down the seventh floor corridor, almost asleep on his feet. He'd been in the library, staying there as long as he could take it, finishing up the last of his research for their next potions assignment. He only barely understood the theory, but he thought he'd taken good enough notes to work on his actual essay back at the tower. But not tonight. It wasn't due for a few days, and tonight he needed sleep.
He was almost back to the Fat Lady when Neville came hurtling out of the portrait hole. He was about to ask what had him moving like his pants were on fire when he got a good look at his roommate's head. "Uh, Nev? Alright there?"
This was a look he recognized. Unfortunately, he'd once been in Neville's position, though he didn't think anyone knew that as it had happened over the hols a few years ago.
Yes, Neville had most certainly been tampered with. He'd been, well, Lavendered.