If I'm remembering correctly, my senior quote was "Bananas are the single most radioactive food most people will ever eat." Thanks, isotope potassium-40.

Welcome to the site! I greatly admire all you teaching-oriented folks out there. I don't think I'd be well equipped for the job myself-- three tiny persons at home is already enough to rattle my nerves sometimes. What made you want to get into teaching in the first place?