In the heat of the moment, when emotions are flaring, arguments can escalate out of control. Whether intentional or not, words and actions can often be misinterpreted as threats.
These tense situations often result in misdemeanor menacing charges, even if no one is injured.
In Colorado, since many citizens legally carry firearms or small knives for personal protection, you could be charged with felony menacing if someone believes you used a weapon in a threatening manner, say, for example, by waving a knife or gun in your car.