Ray freezes when she sees his face. Whatever form he's in, she's not going to forget him any time soon. Her voice catches in her throat, and all she can force out is, "Y-you! You..." You killed me, you jerk!

If she retreats into the store, it'll be a dead end. Ray's not much of a fighter; she prefers indirect means or running away. But she's cornered, and she doesn't want it to end like it did last time--so she throws the can at him.

It falls short, but it's the thought that counts, right?