My Border Collie hates bikes (Motor Bikes are ok!!). When on lead he will lunge, jump, growl and Bark to get to them. No matter what I say he is in that zone!!! and won't listen to any command. When I ride out the back he is ok and seems quite excited by me riding the bike, but when its other people coming towards us he freaks out. Has anyone had a similar problem? If so how do you rectify it. I think that it is his natural instinct, but he is not like this with everything. It must be either a fear thing or protection. Any help would be great thanks.