But Dumbledore says he doesn't care what they do as long as they don't take him off the Chocolate Frog cards.
J. K. RowlingThey run off eckeltricity, do they?" he said knowledgeably. "Ah yes, I can see the plugs. I collect plugs," he added to Uncle Vernon. "And batteries. Got a large collection of batteries.
J. K. Rowling