[We're discussing William Blake's "The Lamb."]
ME: Blake's poem offers a series of questions and answers. In fact, there's a technical term for what the child is doing...
[The students remain silent]
...some of you probably did this in Sunday School...
[The students look puzzled]
...c'mon, folks, this is a Jew up here asking you this question! There's got to be a Christian in the room somewhere.
[The students crack up]
[Yours truly, writing on the board] C-A-T-E-C-H-I-S-M.
["Ohhs" of recognition from the students]