Windows 8 Hot Corners are frustrating.
I am fine with the lower left and for the most part with the right charms bar. What gets me constantly is the top left corner. When I am going to click a tab (chrome) or hit the back button I bump the edge and accidentally click a recent app.
The only options I have found is to remove the hot corners and go back to the old style or have no metro apps open to accidentally switch. This is not easy because if I open a metro app I must remember to alt+f4(which jumps you back to start screen) or take the step of switching out of it, hovering, and right-click delete.
I would love some more options, like disabling the annoying left corner bounce window.