What is one dumb thing you have ever done?

I was teaching first grade and was giving a spelling test. I kept having to repeat the word several times. In the middle of the test I said, "the word is real. Spell real." A few seconds later I said, "The word is real, R E A L (I spelled it out), real." My students began laughing and I looked at them and said, "Well, if you were paying attention you should have at least one word right." :)