Today we find out why some researchers won’t quit tickling their lab rats, and we have some ethical questions about it. Sarah follows up on her building’s dying tree, and how she’s made progress on her propagation. We discuss how some people have a rare ability to recognize faces quickly and accurately, and we are very jealous. Plus, Sarah reveals a superpower she possesses. But the most important thing to know is that Sarah is EXTRA hilarious in this episode.