On posting to my first operational Squadron in the '50's and having a Jewish Grandmother I changed my religion from C of E to Jewish. This worked fine and got me out of all sorts of parades and caused neither the RAF or me any unnecessary hassle. Then I was posted to RAF Germany and had to have the usual medical on arrival. The SMO carried out the inspection very thoroughly and then said, "I note from your records that your religion is listed as Jewish, how come you have not been circumcised?" He then offered to send me to RAF Wegberg to have the matter corrected. A couple of weeks later I quietly and without wishing to draw attention to myself changed back to C of E.