Need popup warning if you click [X] in window

One of my biggest pet peeves' with GW2 is that if you go to close a window such as the inventory, mail, etc., and you inadvertently hit the game window [X] in the upper right-hand corner, you close the game. Most games I have played, they give you a popup warning asking if you want to exit the game because they know in the heat of play, players do stupid things!!! :)

Seriously, this can't be that hard to implement!

Because everyone loves pop up confirmation boxes.

Don’t drag your windows to the top right of the screen, placing these ‘X’ to close buttons next to each other?Don’t play Windowed?

You can close any dialog in the game with the Escape key (unless you disabled that in the options, which isn't a default). No need to click anything - you have your fingers on your keyboard anyway.

All well and good but almost every game I have ever played in the past 30 years had a confirmation when you wanted to close the game. It's still a 'minor' beef but a beef nonetheless.

I'm for it as long as the confirmation warning isn't there for alt + f4.