Calling Mac users for a few questions

[MoonWitch]

My dear fellow Mac users,

We've gotten hit with the "mac bug" were our FPS stays rather good but we have visual stuttering; but let's let that slide for a moment.

I have a slightly different question:
When I play WoW, I of course have the WoW icon in my Dock, as well - all Mac users do. Now, seeing as my Dock is on the bottom center of my monitor, and my action bars are too - this happens:
In Game, I use mainly key binds and have 2 skills I may click on AB7 and AB8, coincidentally that's where the WoW Icon is on my Dock. Now - I hit shift and click those skills, I am presented with my desktop. I have NO clue why or how, nothing special is enabled in my System Prefs and if I move the WoW icon - it's different buttons of course.

I've tried:
- Hiding the Dock (autohide)
- Making sure no accessibility options are set
- Hotcorners. hotkeys all disabled
- Disable OS keybinds in WoW

I genuinely have no clue. It only happens with the WoW Icon.