GNOME Bugzilla – Bug 722106
By clicking "Menu key" you can open as many menus as you want
Last modified: 2014-01-14 04:04:24 UTC
If you open nautilus, evince, or some other GTK application and (when focused) click repetedly the Menu key on your keyboard (not the right button on the mouse) you can open as many menus as you want. If you move your mouse while doing it you'll see the bug more clearly (otherwise, you have to look at the "increasing" shadow of the menu)