NYTimes - Above the Crowds, but Not Above Lawbreaking

A young man pushed several buttons on an outdoor intercom, and after the piercing sound of the lock release, he vanished, like an experienced thief, into the cool shadow of the building’s lobby. A few minutes later, he stepped onto the roof and gazed down at Moscow.

From 14 floors up, the metal roofs of the city center shade into green islands of parks and then the grayish factory chimneys of the suburbs. Birds scream, and from below comes the muffled sound of traffic. He sat down at the edge of the roof and nodded at the vista.

…

Something larger than life draws them, said Anna V. Tikhomirova, a psychologist who has researched Russia’s teen subcultures.

“They probably haven’t grown up yet,” she said. “They still have a demand for a fairy tale romance, and the vista of the twilit city meets their requirements perfectly. When a young man is standing on the edge of a roof, he feels he is more important, experienced and older. He is asserting himself.”

I would say they are hobo of the vertical, rather than horizontal.