Title says it all. We have a beautiful if somewhat dim golden retriever who is becoming a big boy (I reckon he'll be the size of a shetland pony when he finishes growing!) and when he's out for walks he does ok until he sees: a blade of grass fly past his nose a crisp packet a sweet packet empty drink container a person (with or without a dog!)
Hopefully you get the picture. Any top tips to get him to 'behave' and ignore these little distractions?