goofball:
or is it a physcological thing as you never see the instalation process. One day they just appear with no cabiling being done. The phycological factor is much more of a deterent, so i think that they dont infact work half of the time
I used to travel down the A46 every day and the cabling went in months before the poles arrived on the scene and then about 6 months later the vultures appeared.