To say that Eoin wasn't taking the kid seriously...wouldn't have been too inaccurate. Not that Eoin took wizards, or humans in general, very seriously unless they were paying or attempting to kill him (if kill was the right word). The kid was presently doing neither. So it was a chance for Eoin to have someone to laugh at despite the fact that he was pretty pathetic himself. Especially since it was just getting easier by the minute.
"Well it's mine now lad, and yes, I think it works well with the decor." He pronounced 'decor' carefully, almost like he was trying to make it sound French. Really, it was half sarcasm and a weak attempt to talk on what he assumed was the kid's level. Not that the kid had proven that he even was really posh or from enough of a posh background to make him a viable target for mockery.
He listened to the kid until he'd finished ranting, a little more relaxed than he reasonably should have been, maybe a little bit impatient. He wondered if the kid actually was mad, since he seemed to be overlooking about three dozen reasons why Eoin would have been dead under a blanket and a pile of trash all day. He wondered if it was worth it to admit that he was a vampire. It would probably scare the kid away, if nothing else. But somehow, if he hadn't immediately guessed the obvious - that he was under a Disillusionment Charm - he might do something strange and stupid and make the whole situation worse.
"Well that's some fine deduction you're doing there," he said, "But what should I have done? I'll tell you right now I'll not be here long enough to make warding up a hotel room worth my while, and I'm rubbish at conjuring. You're right, though, it's dangerous to be out here in the open, what with the dogs and the ravens pecking out your eyes and such. Rubbish idea, really." He considered for a moment whether he should keep on being obtuse or just not bother and then continued, "But has it yet occurred to you that you're the only one who can see me?"
"If you say so," he replied, "But why would you discover a man dead and then come back to find him alive, ah? What sort of a thing do you suspect he'd done to get in that state? Use your education." He then changed subjects for a moment. "Have you got a wand yourself, lad?"