I was riding along a MUP today and was approaching a group of riders coming the other way. A woman on a mountain bike was on my side of the path with her head down looking at something. I called out, "Heads up" but she ignored me. I called again, then finally "HEADS UP!!!!!!!!!!" in my loudest voice. I started to hit the brakes as she looked up and veered out of my way with a foot to spare.
That is jus tthe latest in my "Greatest MUP Follies" collection. All in all, I find riding along these paths to more frightening than the streets by a long way. I ride on them because I like the quiet and beauty when I'm not dodging women on mountain bikes and the like.
Happy riding everybody!