Clicker training offers you an effective communication tool to use with your cat. You can click and reward for subtle behaviors you normally wouldn't be able to acknowledge. This can be particularly helpful when dealing with an aggressive cat.
Clicker training is arguably the fastest, easiest and simplest way to train your cat to engage in all kinds of behaviors you want it to adopt, from coming to you when called to willingly getting into a carrier for a trip to the vet. Learn more about this training technique.