"Uh...right." Lina knows just how Celestia can be with her...life lessons, or whatever. Better just to play along while she's watching.

Seriously, though. Grimlock was built by TRIDENT to cause mayhem. He is literally a weapon.

That doesn't make Lina any less affectionate toward him though. She jumps off Grimlock's head to land neatly next to him, reaching up to pat his cheek with a cheerful grin. "Aw, I know celestia's kind of a killjoy sometimes, but stick with me and I promise you'll get to smash plenty!"