The student was shocked, apologetic and very embarassed about what he had done. I was the supervising FI and dealt with the aftermath, the CFI did not respond to my phone calls to late that evening and since has shown no interest in the matter. I understand that the owner has everywrite to say who flies their aircraft but the manner in how this has been done has been disgraceful im my opinion. The student has been progressing well in his course and a pleasure to teach. I have been working as an FI at this club for 6 years and has now left and will carry on teaching at another club that has welcomed me and my student.