Alice shouts down to Simon, "Get out of there, Fifi!" This is from a library book called My Crocodile Does Not Bite where a sweet boy named Ernest takes his well-trained crocodile to school for the pet show. Cindy Lou is jealous of all the attention he gets, and in a fatal attempt to show off her poodle's fetching skills, she inadvertently throws a tennis ball into the crocodile's mouth. Fifi, the poodle, runs in the mouth after the ball (the only command she has obeyed all day) and when Cindy Lou goes in after it, they both get swallowed whole. (Get it? The crocodile doesn't bite--he swallows his food whole.) The best part is the end of the book where the principal still awards first prize to Ernest in spite of, or perhaps because, his pet crocodile ate the petulant Cindy Lou.
I guess Alice saw a parallel between Simon climbing under the chair to retrieve his bo and Cindy Lou climbing into the crocodile's mouth to retrieve her poodle.