Sasha likes this job.
It's a quiet night — in relative terms, which means it isn't very quiet at all — which means he has the time to pay extra attention to everyone who comes up to the bar, including the cute policegrey who isn't a regular but barely seems surprised at all that the bartender has his hair dyed black.
It also means he notices when another group of people (not regulars but all faces he's seen, except one) walk in.