I don't feel safe with those trails around, either. Stinkin' joggers and bikers think they own the planet.
Wait ...
I about got run down on a cross country ski trail by some ______ (insert derogatory word of choice here) who was on a snowmobile pulling his kids on a sled, when EVERYONE else was on their own two feet, er... skis. He was a menace to everyone else and ruined the peace and serenity of the scene with that ________ machine.