In psychopaths, inhibitory controls are weak, and the slightest provocation is sufficient to overcome them. As a result, psychopaths are short-tempered or hot-headed and tend to respond to frustration, failure, discipline and criticism with sudden violence, threats and verbal abuse. They take offense easily and become angry and aggressive over trivialities, and often in a context that appears inappropriate to others. But their outbursts, extreme as they may be, are generally short-lived, and they quickly resume acting as if nothing out of the ordinary has happened.
Although psychopaths have a "hair trigger" and readily initiate aggressive displays, their ensuing behavior is not out of control. On the contrary, when psychopaths "blow their stack" it is as if they are having a temper tantrum; they know exactly what they are doing. Their aggressive displays are "cold;" they lack the intense emotional arousal experienced by others when they lose their temper.
It's not unusual for psychopaths to inflict serious physical or emotional damage on others, sometimes routinely, and yet refuse to acknowledge that they have a problem controlling their tempers. In most cases, they see their aggressive displays as natural responses to provocation.
