Is Training A Dog With A Clicker Harmful? For some types of behaviors, clicker training is a great way to go. It isn’t completely necessary to use clickers, but there won’t be any harm in some circumstances. Yet, in other situations, clicker training will be useless or even harmful. For dogs that have to obey in the real world, clicker training will fail you. Dogs in the real world aren’t like dolphins in pool with nothing else to focus on but a noise maker and a bucket of fish.