I discovered you can change the direction of light streaks on your camera just by wiping your finger across the lens in different directions

Example:http://ift.tt/2wzAt6a this at a baseball game, was getting some nasty streaks from the dome lights on my camera phone lens so I tried wiping it, and it changes the direction of the streaks. Use a greasy finger and you can streak them in whatever direction you want. I thought it was pretty cool. via /r/photography http://ift.tt/2fxtw1J