He hears the movement behind him, and Kenny whips his head around, assessing what's going on over a shoulder. It's never good form to look back when you're trying to escape, but--

Yep, dude looks pissed off all right.

The bridge creaks and rattles under his feet, and Kenny grips the ropes tight, fighting back a yelp. This time he's not lunging for the other guy, but simply darting forward in an effort to get as far away as possible before Gary can catch up to him. In the hopes that he won't, ultimately.