A scenario to consider ..

A woman goes for a walk. A man drinking alcohol by a bodega sees her and begins following her. She notices him and begins to speed up. He keeps following her despite her looking back at him and calling her boyfriend on the phone. She begins to sprint to get closer to stores and where people are.
She begins to run and ducks into the first safe place.
This is your girlfriend. Your daughter. Your niece. Your best friend.
What do you do ?