A Class Proposition

I am a high school teacher, as I mentioned earlier in another blog. I happen to teach reading and English to a class where we are studying the different sounds of ea. Short e, Long e, and long a. I was going through a list of words asking them to put them in the right phonemic category. "Alright, whose got steak?"....."Long a"..... "Good... Where does lead (the metal) go?".... "short e"... "Good. Where does clean go?"... "long e"... "Good". We went through this for several words and when I finally got to the last word, not realizing what it was until I looked down, I said, "Whose gonna give me...." When I looked down and saw that the last word was "head", the next word that came out of my mouth was...."OH MY GOSH... UMMM......... What category does head go under." I was in terrible shock, a trainwreck in the classroom, at what I was about to do.... A few of the kids caught on after a moment of pondering the situation. They threatened to tell everyone what Mr. ###### said in class that day.