One of our cats let out an unholy scream like I've never heard. I practically levitated through the house and up the stairs.
Best I can tell, the queen of the house was evil-eyeing some critter out the window. The kitten decided to poke at her and she turned on him.
A similar situation was the only time one of us humans got an urgent-care-worthy bite from any cat we've adopted.
So, kitten was lucky the queen only chased him around awhile before I broke it up.