Have to say the last time I was out on an MUP (trying a new shortcut on the commute home) there was a dog connected to its owner by about 40' of slack 1/2" diameter rope. Owner was on one side of the MUP and the dog was about 20 feet up on the opposite side. Didn't know what to do so I eventually offroaded it to get around. The owner made a token effort to pull at the dog as I rang my bell for the third time., but there was so much slack in the rope it just raised the rope a little way put the pull didn't even get to the dog. Thought about running over it, but then decided that if the owner did that again as I went over it'd get tangled in my wheel and I'd go down.