Upon seeing this, the Queen's formerly enraged countenance quickly returned to calmness, and even swapped it for a smile. "I've made you all laugh. A clumsy maid in my palace knocked over a jade vase."
"It wasn't a big deal at first, but the jade vase was granted by the Emperor and is a favourite of his. Moreover, the clumsy maid injured herself. She has been sent for treatment now, and I can't relax until I pay her a visit, so, please excuse me."
A maid being injured is a minor issue. Sending someone to see her and rewarding the imperial doctor to treat her would already be a great act of kindness. However, the Queen insisted on visiting her personally amidst the Full Moon Banquet for the royal grandson.
Recalling the Queen's apparent rage, everyone suspected that perhaps there was some great trouble afoot.
However, without the Queen explicitly stating anything, none dares to speculate and can only humor her with smiles.