Street Photography without the Faces!

I like to take the pictures of people at streets of the cities as well as the small paths in nature. When I take such pictures, I almost always try to frame it in such a way that they would not be recognizable in any way. Because, some of the times, I could not ask them if it is OK to keep and use the pictures. One of the exceptions in my collection is Wolfs-Hüüller. I was able to find the contact from the writings on the band around Reto Streuli's neck several weeks after the capture. If I do not have the permission, that picture cannot leave my hard disk. As a result, I call my street photography "Street Photography without the Faces!".