I have used slaps often in attempting to gain control of someone in a close setting, such as a Nightclub. It also appears that you are using less force to onlookers. If one has to testify as to the use of force, stating that you used a slap instead of a punch can be viewed as more controlled.

I saw my Father turn some guys lights off on Germantown Ave nearly 30 years ago. A man threatened, and charged at, my Father over a parking issue. A hearty slap just under his left ear literally turned him off as if a switch was thrown. One of the best lessons you could demonstrate to a 10 yo. It is the gift that keeps on giving

Be safe (and smackem' if ya' can).

Scott