Pretty crazy, right? You can thank Clara for the majority of that freak show... pretty sure her forearm/elbow was responsible for most of the action.
Have you ever watched a baby chick hatch, by the way? Because that's sort of how I feel when I'm watching them sometimes... almost certain that one of them is going to pop out unexpectedly all of a sudden. Thankfully that hasn't happened, yet, and we're hoping they'll stay inside until it's actually time for them to "hatch" :)