Please be mindful of your surroundings while using your phone on the street

Witnessed a phone snatching this evening at Van Ness and Mission.

Dude on a scooter rode up behind a lady in the crosswalk who was on her phone (first picture) and snatched it. Gave chase on my bike (thief in second picture), but I was ultimately less willing to risk my life running red lights than he was and lost him heading into Hayes Valley. Pictures are frame grabs from my bike camera. Be careful out there. Gosh darn, I hate these jerks.