George Weasley wasn't really the sort of person think things through to the inevitable explosion of badness that often happened when he made a plan. All he was thinking of in this instance was the two stupid moron dummy heads embracing after a foolproof plan that involved making them think the other had apologized first. What could go wrong?
"Or that could work," he admitted, having given it some thought. "But what keeps them from turning around and leaving? What opens them up to talking about it by getting rid of the awkward?"