As for the administration of Prof. de Racker's school, their reaction reminded me of the low-key response of the principal to the Juf Ingrid nude-photo to-do here in the Netherlands.
Prof. de Racker himself seems to be taking his new celebrity in stride:
Vice dean Anne Goffin said the school could not condone Prof De Racker's language in class.
However, she added: "They are all big boys and sometimes it is not easy to attract their attention. Every teacher has his own way of teaching and Prof De Racker has been in the army for a long time."
I'm very glad my students were able to make a sample like that. I don't think many collegues can boast of having their own song.