I don't know, I can see such and outfit coming out on "intertainment" at, say, a bachelor party or adult oriented birthday party for a fireman or volenteer fireman.  Having been a volenteer fireman in both a residential and industrial setting until my health interfered, I have met a number of people I can honestly say would have such an attraction at such an event.

I certainly done;t see it as offensive, either in intent or practice, any more than a sexy police uniform or a sexy maid uniform (which can be used for much the same purpose)... My Mom worked as a maid for some time. I've know several police officers and been proud to call them freinds. I don;t associate the racy costumes in the MP with either of those occupations. They are totally different from the reality.

I have also looked over your gallery Kamion and can see the major theme in it, I can only say that I'm sure no offense to ANYONE was meant by the merchant, he proably just noticed a similar outfit somewhere and felt like modelling it (that's how I get much of my inspiration). I certainly hope that you can see past any prejudice you might have , and not let it eat at you, since I don;t feel this to be in anyway demeaning to the true heroes who wear the real turn out gear.