Ron opened his mouth to keep on arguing, but then Harry was ruining it by agreeing, so his mouth just hung open for a second, and he blinked. "Oh, NOW you bloody agree with me? You couldn't have done that three weeks ago?" Before he'd managed to burn that attempt he'd made at oatmeal, and had to listen to them whinge about it. Like they could do any better.
Ron wrinkled his nose, disgruntled, but he shrugged, nodding. "It's not like any of them are going to run off and tell the bad guys about it." Well. Snape, maybe. "Wait - you don't think trusting Snape is his mistake we're not supposed to make, do you?"