Before we start training our cats to do something or to stop doing something, we need to look at how cats learn. They don’t understand English, they can’t read books or attend lectures. They learn by experience. If the experience is good, they will try to repeat it. If the experience is unpleasant, they will try to avoid it in the future. They enjoy raking the furniture with their claws, so they continue to do it. But it’s quite a shock when they stick their nose in a candle flame, so they won’t do that again.