Originally Posted by
mstateglfr
Just pass the person already!
Seriously though, if the person is walking/jogging/running/cycling in a reliable line, just pass them. There is no need to have everyone acknowledge you on MUPs.
That's the point, though, they appear to be staying in a reliable line and then just dart out in front of you just as you close. This is not common, but I've had a couple of very close calls.