Unpredictable student

Yesterday's class. The subject was infinitives (to run, to walk, to jump etc) and how to use them to answer Why questions. Example, "Why do you go to school? I go to school to study. Forty minutes in and after we'd used several examples one boy started to sing this song by Electric Six, to no one in particular "I wanna take you to a gay bar. Gay bar, gay bar". He did this several times over the next ten minutes. I haven't laughed so hard in ages and I'm glad everyone else in class enjoyed it too because no one could have predicted that.