Let me add the "teleporting" stuff during the train ride. Also, what determines in which direction the blurry woman appears? And why didn't Ruby - in all those years - not try to throw a stone or a bottle after her - just to see what happens? And if that scary lady really was "old Ruby", how did she endure days/weeks/years outside in the rain?
Thinking about this, when Ruby was pacing around inside the pub while the other guy went outside... that blurry lady must've floated around - always keeping exactly 73 yards distance from Ruby, right?
And how did the "scary" stuff even work with the trained UNIT elite professionals that were explicitly briefed to "not make eye contact, don't listen to anything", etc.? And it even worked via radio with Kate, the snipers, etc.. And suddenly, Kate wasn't even interested in the location of the TARDIS anymore? Nor did this head(!) of UNIT say anything at all about WHY she was abandoning Ruby.
Oh, and why did the PM abandon all his plans for buying WMDs and stuff when all other people that had contact with the blurry lady just abandoned Ruby? Where's the connection here? It clearly wasn't the reason for the blurry lady as she was still there afterwards.
Also what is it with The Doctor stepping on things? Didn't the fucking landmine teach him to watch his steps?
This episode was a mess IMHO. Like a fever dream - just that it was never suggested it was one.