The NUMBER ONE Rule to remember, PED's walkers, dog walkers, etc. have the RIGHT AWAY on a MUP!!! Infact I don't know what your area is like but here in Colorado Springs a "cyclist" is the lowest priority on ANY MUP or TRAIL, even the Horsey People are above us. So when some lame-brain racer wanabee, comes hauling bunns down the MUP/TRAIL, I just shake my head. Almost got into a head on in a blind curve on a MUP by to clowns on MTB's hauling full tilt boogie taking up the whole MUP. It's really too bad there isn't some real "enforcement" to curb some of this problem. If you've got to go FAST, then stay off the MUP/TRAIL, they weren't designed for speed!