During the middle of the class, there was a call over the intercom. We were laughing so hard that I couldn't hear who they were asking for. So I had to call the office back and eventually figure out who they wanted. After this little moment of laughter, the class settled down and was probably the best they've been for me the entire time that I've been in there. It lightened up the atmosphere in the class, and lessened the tension I'd put on myself which made a big difference in how I felt for the rest of the period.
Today is mole day.
My students wanted to know where their mole day presents were and I told them their quiz for today was their present. They weren't too happy about that. Some of the students thought I was joking. That I had made up mole day that it didn't really exist. I thought it was funny that they had never heard of it.