[Ugh, as if this couldn't get any more embarrassing. The accusing looks from the other patrons in his direction was bad enough, but now there was someone else joining in the ruckus too.]

I'M not--!

[There's a loud 'harrumph!' from across the room, and Xiaolang peeks over his shoulder just long enough to see the librarian glaring daggers at them both, and his cheeks flush brighter, scrambling to grab a stray book to shield them from any more angry eyes. His voice lowers to an angry hiss, attention now solely on Mabel.]

Are you crazy? This is a library, for crying out loud! Why would I want to scare anybody?!

... wait, YOU didn't do this, did you?