Work required me to take an anger management course. Obviously this would prove them right so I leave it you. How best could I use this training to do this

Job context. Am the lead line cook. Had to take the class because a customer over the phone asked if the curry was sweet or savory. I tasted it and said “tastes pretty f***ing savory to me” to the server who didn’t put the person on hold. One email later and a final written warning here we be.