When the giant water weapon is revealed, the look of smugness is wiped clean off his face, and Jon bolts for the nearby line of trees for cover, though he still gets hit in the back on the way. He secretly appreciates it, though, because he is a little hot, everything here is so much warmer than he's used to and even the water in the balloons is no snowmelt.

"A real man must needs use aim and skill, not such things as that!" he crows from behind the safety of a particularly large trunk while winging the sad little water balloon he'd been holding blindly back towards Stiles for cover and then peeking around it to see if he'd moved before wasting any more ammo.