Recently, I wrote a post on Rogues having trade windows opened up on them without so much as a word. As I suspected, many other Rogues out there indeed have the same problem. Of course, many had their own ways of dealing with it like picking the box, but not hitting trade until there was a tip in the window. Another idea was just keeping all trades off in their options so that people couldn't open up trades with them in the first place. All of these are things that I've tried from time to time with varying levels of success.
What I didn't expect, however, was the sheer amount of people who jumped in and brought up the similar plights that Mages and Warlocks face on a daily basis. As I've got a L59 Warlock and a L61 Mage, trust me when I say that I completetly understand and appreciate what you all go through with the requests you get. I'm not even able to portal others to Shattrath yet on my Mage, but anytime I'm playing her, I almost immediately get asked to open a portal there for someone anyway. Now, nobody has opened a trade window on me without asking and grunted out "food/water" as yet, but I've definitely gotten the tells demanding that I make food or water for them, as opposed to asking nicely.