I seem to remember a thread here on PPRUNE a few years ago. What happened was that the author had recently had a letter published in one of the broadsheets and the newspaper, on discovering he was an airline skipper, had changed his name at the end to 'Captain Fred Bloggs'
A week later he received a VERY snotty letter from an Army Lt. Colonel (retired) (or something like that) about the use of the title 'Captain' and how as an aircraft commander he was not entitled to use it etc etc. Quite an interesting thread ensued.
It only takes 2% of persons in any walk of life to give a bad name and it is t*ssers such as this Army Arse bring down the reputations of ex/military persons.