1) The physiology equation of the day was "Happiness= Reality-Expectations". So, keep expectations low to keep happiness the highest. This is good math (especially when they are returning tests).
2) There are those moments of clarity when you suddenly understand why you make yourself work hard for something. Today, I had one of those moments when I learned that you can radiograph whooping crane eggs to see if the chick is positioned correctly to come out of the egg- if not, you can assist it to prevent what would mean almost certain death for the chick. That. Is. So. Cool. Remember things like that.