Unusual and unexpected situations can have a very powerful influence on both obedience and disobedience. In any situation, there is usually at least one variable that can alter a person's actions. A person may find themselves in almost identical situations on different occasions, but because only one variable is different, that person would arrive at a completely different decision or perform a different action. Depending on the situation, an individual's morals or beliefs can potentially become irrelevant and he may give up past discernment and behave in a way that is unsuitable for his character. (Ross, Nisbett