Alucard was not used to people sneaking up on him.

He wasn't used to giving people a chance to sneak up on him.

It had happened a few times, over his years of service, and always resulted in a torn coat and pain in the ass injuries. It usually signalled the start of a really good fight. The best ones were the ones you didn't see coming.

He whirled to face the door, coat flying out around him as he looked at the intruder.