Window shades Dracula:

When you travel in an all day flight (the sun is out during all of your flying hours) in a long to extra long haul journey, passengers should be arrested if they try to open the window shades. The feeling when someone opens them is like if a thousand needles hit your eye ball, the nearest thing from a real Dracula. Advice: they should be automatically locked after take-off.

(I don´t own the above picture)