I can remember seeing sneakers on power lines ever since I was a youngster. Recently, I learned that the police consider this a sign of gang activity. The power company has to report any sneakers on a line to the police. They photograph them and make a record of where it was and then remove them. They say it's how gangs outline their territory. ( I'd love to have that job! Hey Steve, there's some sneakers on 5th and Broadway....)
When I was a kid, after the school year was over, you took your old gym shoes and tried too get them around the power lines. It had nothing to do with anything, it was just something to do with some old smelly shoes.
I made this with the Canon G10 and processed it with Photomatix Tone Mapping program. I got an added bonus when the sky and the power lines took on a stained glass look to me.