When the dog first appeared from around the shed, Junpei caught a glimpse of it's silhouette. The familiar curl of the tail and general build made Junpei wave and call out to it.

"'Sup, Koro-chan? You get stuck in my weird-ass dre-- Yiiiieeeeaahh! What the hell?!?"

Seriously, just because he'd thought earlier about his subconscious throwing Koro-chan on mutated steroids at him wasn't an invitation for it to do exactly that. Junpei shrieked when the dog lunged at him and dove to the side.

"Woah, woah, woah! Stop it, Koro-chan! Bad dog! Bad dog!" He exclaimed, rolling to his feet. "Come on, it's me, Junpei! Sit!"