Sorry, I can't sell you those condoms because I'm Catholic.
You'll have to go to register 5. But she's Musim, so she can't sell you that ham.
You'll have to go to register 8 but he's Mormon, so he can't sell you that Coke.
Try register 2, maybe, but she's a Jehovah's Witness so she won't sell you that birthday card.
Maybe try register 4, he's an LGBT guy who believes in equality. He'll sell you anything because he's not a small-minded, bigoted asshole that hides his bigotry behind religion.