You were running from your abusive (insert here). Sprinting down the streets as people just watched in shock, or covered their children's eyes.

Vincent had just killed someone who was threatening his work. He just cleaned up and disposed of the body, when you came crashing into him. He just stumbled back and regained his footing as you ran into his chest.

He was about to yell at you, when he noticed your (insert abusive person) was chasing you, and you looked scared.