This is the most annoying feature in ubuntu for me. Consider you play some media. Open the directory where your movie / song is located. Then open totem / vlc player. Now you click on the required movie to drag-n-drop into vlc player. Right after you click focus completely shifts to nautilus and vlc goes to background thus making it hard to drag and drop.

Focus should b given to nautilus only when the click is completed ( ie you press and release the mouse button ).
gnome gives focus just on mouse button press.

Please fix this.