Possibly just disturbed by the noise and being rudely awakened thereof.

[It was only a bit snarky; V wasn't a Belmont after all. Nor was Alucard...Adrian that is, too bothered. Night and day were only cycles as far as he was concerned, and he'd been known to spend long periods of time asleep already.]

Although I have been told it's unwise to drink alone, so perhaps I'm simply here to spare you from doing something stupid.