Last night I was holding on of my pigs when I heard an unfamiliar noise. He was laying on my chest, all stretched out and seemed pretty comfy. After I had been petting him for a while, I noticed a very faint "click" noise coming from what appeared to be his mouth. It wasn't a constant click, but every 10-20 seconds there would be a single click. Was he chattering his teeth at me? He didn't seem to be stressed or at all agitated.
