Universal quantifiers are an all or nothing kind of generalization. If someone says, “Every time I do someone a favor, it ends up biting me in the rear,” you might ask, “I wonder what it is about you that makes that happen every time, you know, since that doesn’t happen every time to anybody else.” Your friend might come up with an insight like, “Well, you’re right, I need to quit trying to help people who are so out of control, because it spills into the lives of anybody who connects with them.” In this case, he found a universal source that gave the universal quantifier at least some truth. In this case, that could be better than finding the exceptions to his generalization.