I love to hear those personal stories, especially those from another part of the world.
Customer service here in America is pretty hit and miss. I will say however, that "gun people" are among the most friendly (and talkative) around. I am not what I would call a "gun person" but I have recently started buying (too many) guns. Most of my purchases have been over the Internet. I may have to interact with some distant gun shop to give them my credit card information, and then I also have to interact with my local gun shop to receive the interstate transfer. (Here in the USA, we cannot buy/sell across state lines without a federal license, so out of state purchases get shipped to my licensed gun shop and I must pick them up there--it really ain't a free country.)
Anyway, all those interactions with distant gun shops, as well as interaction with my local shop that does the transfers, and my interaction with the three local ranges I've been to, have all been very positive. Maybe it is the nature of everyone being polite who has a gun? I don't know, but "gun people" seem to be very easy to deal with.
Your story about magazines is interesting to me. I actually don't know what TSA would do if they found a gun magazine on you. I know that guns must travel in the luggage compartment, but I don't know about magazines. Of course, internationally is a different story. I do have an interesting parallel here. I just purchased a Beretta 81BB. Magazines for Beretta 81's are difficult (read impossible) to come up with here, but I have a co-worker who is, right now, travelling in Italy. I considered asking him to pick up as many as he could and bring them back. I could use a few and sell the rest at a handsome profit. He's a young guy and probably would be nervous about it and I have no idea what the law would say about it. Heck, you can bring back a bottle of wine, why not little metal springy things?