and this is why fanfic is the best thing on the internet
Harry sighed dramatically, though he had to fight back a grin. "Now, Harriet, what'd I tell you about killing people?"
"Don't get caught?"
"Besides that."
"Take all of their stuff?"
"No, besides that."
"Don't do it without a really good reason and only if there is no other choice," she sing-songed and then started giggling.