She trips

With her jeans around her ankles it doesn't take much of your power to over balance her and she trips dropping the books all around her.

Her startled scream is loud, but not loud enough to cover the sound of ripping fabric, and you watch the seam of her jeans tear nearly down the middle.

Megan manages to sit herself up, looking down at her jeans. "Oh my God...." She mutters, realising that they will be of no use to her now. She's trapped here, in the bookstore, with no jeans.