Theo shook his head, holding a preventative hand out. "No, it's okay, I bought it for you." he admitted easily, generosity with the money he had nothing that he thought twice about. Quite apart from thinking that he wouldn't get it back from Ernie, he didn't think Ernie would want to keep a book that he'd owned. "I know you will."
He winced when Ernie drew his wand and hated himself for it, especially when he heard the music change to something he recognised. That made him smile as well and this time he wasn't self-concious enough to hide it or feel bad about it. "No, I like this one." he agreed, almost physically relaxing a little. "I hope this isn't disturbing anyone else for my sake though."