exscribbler,
IMH and un-PC opinion your banter was just that - banter. It's a skill that has been sacrificed to the gods of diversity and equality. Nothing racist about it at all and nothing that hasn't been previously encountered in crew-rooms and tea-bars across the Service. I've been called a Welsh sheep-sh****r before. Fair enough, but I'm from the tribe who are supposed to have had cranium re-assignment by our neighbours from across the Tweed.