Something About Fiona/Tickled Pink

S2, E1: Coop falls for Fiona, old Mrs Munson's niece, but he's worried she'll be hurt by Kat's murder attempts so he gets her banished to her room. Millie discovers that if she tickles Kat's tickle spot he becomes benign and useless as an evil agent, and the Overseer sends an assassin droid to get rid of her so he can have his agent back.