Learning the vulgarities of the alphabet

After about a week teaching in class, I decided to try and get my kids to start associating words with the beginning of letters since the normal routine of having them sing their ABC's was getting boring. I call on the children one at a time to ask them to give me a word that started with a letter that I give them. Following the three people that have gone before him, a little boy of four comes forward and stands in front of me. "H," I announce to him and the class. "H," he repeats, "H is for Horseshit!"