Edit for panels 3-5: I just remembered that time when Perfectpaw got stuck in the Twoleg trap and the dog was barking at him from outside, so he probably has some sort of trauma from that, which might be why he's so scared just after the gathering--it's because of Houndpaw The loud noises, cracking and fall tree/tree branch and (presumably) general panic afterwards couldn't have helped. Edit: 109 views? That has to be the most one of my projects has ever gotten, I'm seriously impressed.
