More eye candy
Goat Rocks Wilderness. Highest point on the Pacific Crest Trail
About 15 years ago I met a couple in the Saline Valley who owned 2 llamas. They told me their llamas would herd the other animals into the barn during the rain, and stand watch outside. They also spun wool from the hair of their llamas and made some really nice clothing. They had some hats made from llama wool, which they didn't want to part with. Could that have been you?
I've been packing with llamas for twelve years, so it wasn't me. But, the behavior sounds normal. Llamas can be protective around sheep and calves, not so much around horses and goats. Coincidentally, I have a hat made from llama fiber.
We travel in comfort, the best part being that I can go further and stay out many more days than I ever did backpacking.