He's a bit busy trying to grab the rat he's caught with his foot, having a bit of difficulty since it keeps squeaking and trying to go for his hand. He has gloves on, but even so he doesn't want to get bit. It takes a few more swipes before he manages to grab it by the back of his neck, tossing it into the bag quickly after. It's only then when he turns around that Garris notices just how close Shepard has gotten to him during the time, his back stiffening in surprise shock.

Even if it isn't accurate, the word and the way she says it has Garris' eyes widening a bit, his gaze focusing on her as she comes close then moves away. Enough so that when she shouts it surprises him and he completely misses the rat coming his way.

At realizing that he swears slightly before giving a sigh. She was very distracting. "Next time. No rats."