Contrary to popular belief, assault and battery do not mean the same thing. An assault is any act that puts another person in fear of being the victim of a battery, as long as that fear is reasonable. Actual physical contact and harm are not necessary to commit an assault, but the law does require that the perpetrator do more than just use threatening words. A battery, on the other hand, occurs when a person makes actual unwelcome physical contact with another. So technically assault and battery are separate crimes, although they often occur together in immediate succession, and are often charged together. An assault can potentially be upgraded to an aggravated assault if the perpetrator uses a weapon to threaten the victim, or if the victim was a certain class of person, such as a police officer, pregnant woman, or elderly individual. A battery can be similarly upgraded if committed on the same class of person, or if the perpetrator used a deadly weapon or otherwise intended to cause great bodily harm.