Well, Andrew, yours was with their dealers. Here's mine from their PR agency (Ogilvy): I wanted to request a 70D to try out the-then new Dual Pixel AF system and write about it, but because I was not very kind towards the EOS 6D and its AF system (I called it a "castration") I was basically refused a review unit.
Another one I know was about a local photographer who is a Canon user and was shut out of their product launches after calling the EOS M crap on its launch event.
So essentially, if you only have people on the Internet talking positive things about Canon products, it eventually brings about that perception that Canon products are the best. Talk about shaping reality, eh?