Ron waited for Hermione to justify herself - Merlin knew she was capable of going at it until he didn't have a rational leg to stand on - and unwound a little when she seemed to decide it wasn't worth it. "He can tell me just as easily, anyway," he said with half a shrug. He didn't want an argument, and he didn't want to jostle her head from his shoulder. "- It'll be nice to have. It's a good idea."