The great Peter Cook tells in an interview of a time he was at a restaurant, and this loud, abusive guy, rich as ****, realises his table has not been reserved. Angry and indignant he starts yelling "This is not good enough! For God's sake! Do you know who I AM?"
Cook immediately jumps up, shouts "My God! Somebody help this man! He's forgotten who he is! Does anyone know who this man is???"