They actually have a special measuring device called a pom-pom-mollynocker to see how far your monocle pops out when they spring the surprise question on you. I reccomend starting a workout regimen of eyelid crunches and cheek-ups today if you really want to send that baby flying and impress them
I had to be at the mag lab in Tallahassee semi regularly during my undergrad, where they would demonstrate the magnetic levitation of a frog from time to time. The place had systems with cryo pressure high enough to turn an improperly sealed hatch into a very deadly projectile for anybody unlucky enough to be in the same room