How to be evil w/out blowing the secret?

Threaten to tell Miss Cheerilee
    - bluff gets called, doesn’t want to lose her own crotch remedy so can’t tattle
    - tries to tattle eventually, catches AB and Cheerilee doing it and gives up

Make Liza stay home pretend to be sick
    - say AB did it
    - tease fillies and avoid teasing bloom in front of cheerilee
        - cheerilee totally falls for it

Get mad and kick AB in the balls
    - get scared and run when AB completely collapses