A simple assault is the intentional, unlawful threat to do violence to another person while having the apparent ability to carry out the threat and as a result, creating a well-founded fear in the other person. Simple assault, usually charged as a misdemeanor, is the least serious form of assault. An assault can be by word or by an act. Where assault is a physical attack, pushing someone or slapping someone in an argument are instances of simple assault. Penalties for Assault. Texas law classifies Simple Assault as a second-degree misdemeanor, with penalties of up to 60 days in jail or 6 months probation, and a $500.00 fine.