A few days before an interview for what turned out to be my first full-time job (I was 21 at the time and had only worked casually or part-time), I was walking past a particular women's business-wear place which is fairly well-known, and also pricey. Not having a full-time job, I naturally had never been there, since I couldn't afford anything except the cheapest stuff. But they had a sign advertising $20 work shirts (three days only!), and since their shirts always look fantastic in the window, I decided it was worth taking a look.
Unfortunately, the door was locked. It was 11am, one hour after opening time. There was no sign indicating that they were out for a quick break and would be back soon or anything. I wasn't in a rush, so I hung around for ten or fifteen minutes until I heard the door being unlocked.
Inside, there were only the two women who worked there, and they seemed very busy (busy enough to ignore me, actually) with their important conversation about some trivia from their social life. I looked at all the shirts, but found none at the advertised price (all were upwards of $80). Thinking that perhaps they didn't relabel the clothes and the ones on special were all in a certain designated area of the shop, I approached the women and said I was interested in the $20 advertised special.
One woman rolled her eyes and the other turned to speak. Her response was to very obviously and slowly look me up and down (I was wearing jeans and a plain top; nothing terrible but nothing remotely fancy either) before saying slowly and patronisingly, "oh, no, that special isn't for people like you." I remember this word-for-word. I pointed out that there were huge letters on the window, visible from where we were, to the contrary. She made another comment which was something like, "there isn't a special available to you" before turning back to her demanding conversation.
"You'll be hearing from your superior" was what I said as I stormed out (the force dampener on the door prevented me from slamming it) and emailed the company directly. They chose not to respond, even after I sent two more. So I have since told everyone who has ever brought up that particular chain of my experience, and have left negative feedback with details of what happened and their refusal to deal with it on every website I can.