Who the hell- Cassie was so startled that she didn't really register what was being said to her. All she processed currently was that there were a couple of strangers approaching her from the darkness with badges being all authoritative and pretty creepy ('we're watching you'? and that menacing smile?), and that the hissing she'd been thinking was a weird gas leak was some sketchy dude watching her from the shadows. None of this seemed like particularly good news to her, whether they were actual feds or just faking, and she realized a little too late that they actually had her cornered- there was a brick wall behind her. Cassie was trapped.
Either she tried to run (going large would attract more unwanted attention, shrinking down might get her stepped on) or she tried to fight her way through them and then run. Options were limited and she was facing two-to-one (three if Gas Leak brought his weird ass down here) but she decided to just go for it. Maybe they weren't expecting a fight since they outnumbered her. Maybe she'd catch them off guard. Especially if they were expecting her to shake hands and make nice. Stature braced herself against the wall behind her and then suddenly propelled herself forward, aiming a kick at one of the women and a punch at the other. If she could just get past them, everything would be okay.