Dear pet owners of GT... a question for you. Terrance the Dog's left ear has suddenly become rather smelly. Ordinarily I would assume that smelly ear = ear infection (he's prone to those, even with regular ear cleanings) but he isn't acting like he's in any sort of pain and when I tried to clean it earlier there was no gunk/debris/discharge at all. Have any of you (well, your pets) dealt with smelly ear issues? What was going on? I am confused.

Bonus... adorable Terrance adorably sleeping like Frankendog: