I hear you. My head is on a swivel every where I go. One of my wife’s friends made a light comment once about me checking out women to which my wife answered, “no it is not that he is just paranoid”. A moniker I wear with pride.
It isn’t isolated and in crowded areas I find myself having to “ahem” loudly as I near a person in order to try to break their daze; yes, the demographic is somewhat consistent. Read this story from about a month ago in Montreal:
‘Distracted’ woman dies after falling between two subway cars in Montreal
http://globalnews.ca/news/514584/montreal-woman-killed-in-metro/