"How did these items get made if there's no way to learn magic? Are the magicians homeschooling their children and not writing any books? How did you learn?"
"Half this stuff is antiques," says the shopkeep. "Look, asking me a dozen times isn't gonna make the answer more to your liking. I don't have Hogwarts in the basement, deal with it."
"But where do you get the stuff that isn't antique - who made the Avalon itself? - isn't anybody panicking about the medallion supply? -"
"Kid, nobody knows how to make medallions."
"But some people apparently know how to make luck charms and protection amulets!"
"I'm not going to give out my suppliers' personal information. I wouldn't do it even if you weren't annoying."
"There have to be books -"
"Does this look like a library to you?"
"It is entirely possible that Daphne and Jaromira have made critter friends. Even if they haven't, they're more likely to than I am. I can ask them to inquire."
"Gasp! Clearly we must find a priest immediately to confess our iniquities and receive penance before it's too late for us."
"Except, of course, that they will require us to turn in the true witches, and I could never betray my sister. Farewell, my dear, it's not too late for you; save yourself while you still can!" He presses his wrist to his forehead dramatically.
More giggling. Followed by, "But I think priests take confessional confidentiality really seriously, don't they? So you needn't worry if you ever do feel the need to get it off your chest."
"Well, they're supposed to, but not all priests do all of the priestly things they ought. I'd have to trust any given priest very seriously to keep quiet before I said anything that might incriminate Jaromira."
"And once they have you, they might employ...the comfy chair!" He wriggles in his seat a little. "Oh no! It's too late."
"My chair is very comfy. It has to be, I sometimes sit in it all day long. I'm immune to the tactic."
He opens his mouth. He closes his mouth. He says, "More harmful applications of that spell just occurred to me than I think were entirely warranted during a meal."
"...Sorry. I'm pretty sure in its current form it would not actually work on fluids inside a person?"
"Yes. Perhaps I should have said our unstoppable tide of tea, or something similar."