"Because dancing is a sin," Barty told Bill, "And all sins are equal, apart from the deadly ones. If you commit a sin, letting the devil guide you, small or big, you're on the way to hell." It was easy enough to recall all of those lines, even if he hadn't had such a good memory. It had all been drilled into them.

"Dancing's not half bad," Crowley disagreed, "We can dance some time. I'll find music you'll like." Something not so... bebop. Whatever that entailed.

"Anyway." Barty unlocked the door, holding it open for the others and looking at Aziraphale. "I work at Dunelm to earn a living, I study at uni and I keep trying to get our idiot siblings to let me pay their damn bills. So come on in. It's not as much of a den of sin as you've been told."