That expression is so realistic and so terrifying. IF it was directed at him, he'd be cowering.

"I wanted Billy to get better at fighting. He's been working at it slowly, but he rarely gets chances to prove himself. Apparently the fans want a somewhat vulnerable character to laugh at or cheer for, depending on their preferences, and if I don't like it I can go to a peace conference.

It's all whispered, of course, for fear of being overheard.