I nearly ran a Cocker Spaniel over this afternoon. It walking along a pavement on a flexi-lead, at full stretch - it darted into the road in front of me. There was pure panic in the owners, the lead-holder tried to pull it back - not happening with all that length. Luckily there was nothing coming the other way as I swerved across the road to avoid the dog! I wish people would use them properly if they have to use them. I was quite shaken up by it.