the bad (or the frustrating really)

I like to walk everywhere, and try to avoid taking buses and the subway if I can walk somewhere.  Buenos Aires being the big and populated city that it is, is often short of footpath space and there is nothing that I find more frustrating than when someone is walking at the same pace as you, and you cannot pass them.  You have no other choice than to walk with them or painfully close to them, and then they keep turning around because they are paranoid about being robbed.  Usually I speed up my walking pace to overtake them but this morning I was wearing-in some new shoes and they were in the process of giving me blisters, so speeding up was not an option.  And the guy infront of me was in his own world AND walking all over the place.  Is it too much to ask that you walk in a straight line and if at all possible, not at MY pace?