You can ensure it doesn't interpret a right-click as a left click by lifting the fingers on the left side before right-clicking, then it'll work every time. Or

You can ensure it doesn't interpret a right-click as a left click by lifting the fingers on the left side before right-clicking, then it'll work every time. Or do like me and ditch the magic mouse, since it's insane that a mouse would force you to do that just to be able to right click with any consistency.