Great story!
Closest I could come: in 1971 my highschool-aged older brother had a math teacher who was a former Luftwaffe Stuka pilot. Supposedly when things got slow, Herr Schmidt -- who had a wooden leg as a 'souvenir' from his time in service -- would occasionally reenact missions over the Eastern Front sitting atop his desk, using a yardstick as the control column, narrating in a German-English polyglot.
He'd probably be up on charges in today's PC environment...but in those days, his students merely found it eccentric if not amusing. (Of course, if he was narrating missions over London or the D-Day beaches, I'm sure it wouldn't have been quite so amusing....)