If he was clearing trail, he was making noise, so WTF? Bet the dog brought it to him. Or he was coming back out the cleared trail in the evening.
Or - chit happens.
Hiked Falls Creek and Ptarmigan Lake trails yesterday and today. Lot's of bear crap. And other hikers.
Not one had spray or a firearm. We had both - wife the spray, I was packing the '94. Coming back down Falls last night after the sun was behind the mountains, and other hikers long gone, I was hot chambered!