When someone is angry at the question, it is a near 100% indication of guilt. They may attack the questioner. Or they attempt to flip the situation by accusing the questioner of discrimination or bias. “Why don’t you trust me?” They may deflect the question with responses like “Why aren’t you paying attention to what Harry did?” Or they attack the business or a third party with responses like “It’s the store’s fault. We don’t have what we need. The security is terrible; so things disappear.” Anger, disgust or blame in response to the question is a sign of probable guilt.