She knows why she felt like taking this alley route to work the moment she turns the corner. In front of her she sees a young woman in a staring contest with what she knows is a demon. A glimpse of the red eyes tells her all she needs to know and she quickly averts her eyes. Making eye-contact with those eyes will cast you under his spell, ready to do his bidding so long as your eyes lock. 

The girl is already stepping towards the demon, fully under his influence. The demon has to concentrate to keep the eye contact, though and he doesn't seem to have noticed Rachel yet. She pushes her back against the wall behind a container and rumages in her purse, qyicly finding what she's looking for. She pulls out the bottle, takes a deep breath and the pushes herself away from the wall. She runs a few steps towards the couple then throws the potion at the demon's feet while shielding her eyes. The glass breaks and a blinding flash appears. It works. It breaks the demon's eye-contact and the demon screams, bring a hand to his eyes. 

Rachel hurries towards the woman and gently starts pulling her back. "Come on, we need to get out of here." She looks at the woman uncertainly, wondering if she was blinded by the flash as well or if the demon's gaze protected her until it broke.