Lu's upset when Declan takes a bite of her apple.

Lu upsets the other bugs when she refuses to share the funnest role in a game.

Barnaby is in the mood for hugs, but not all his friends are.

Declan accidentally upsets Gus by not properly explaining the rules of a game.

Lu feels discouraged when her xylophone playing doesn't get the reaction she'd hoped for.

Lu gets frustrated when Gus won't join in her mimicking game.