I keep watching the end of Lesson Zero, and for the life of me I can't convince myself that Big Macintosh didn't deck Lyra in order to secure Smartypants for himself. Seriously, go watch that sequence, I'll wait. If it wasn't him then it had to have been Bon Bon, because they're all right there and she's the only one laid out on the ground holding her face. Makes ya think.
Also, adult Scootaloo is the smuggest looking pony I have ever laid eyes on. Click the comic below and tell me if she ever loses that self-satisfied smirk at any point before the last panel. My goodness.