Nope, never a slapper nor a slappee...
It *is* assault, you know?
Slighlty extending the topic, I think it is pretty bad that TV and other cultural cues make it seem that any disagreement ends in a slap or punch, and any police interrogation ends with the 'perp' (actually suspect, BTW) getting whacked around by an incensed out of control cop we are supposed to identify with, since they are shown to have had a personal experience associated with the crime. But that is obviously no excuse, and no action is never taken on the officer's actions...
Hopefully, without coming across as someone who does not understand the impetus behind 'dramatic license', I would say the negative effects of such works are real. I recently sat in a Miami restaurant, doing some work on my laptop, alone. Two youngish guys came in in plain clothes, wearing gold shields and guns clipped on belts, slapping shoulders... they sat down and were not overly obtrusive at first. But then a third and forth guy showed up, no obvious 'police gear' hanging off of these two, and joined their table. As I was the only one in the section besides them, and appeared obviously engrossed in my work, they were not feeling inhibited. The obviously more senior officer of the group began to talk more and more derisively, and more boisterously... soon, even though I was intent on my work, I could not avoid capturing phrases like: "I told him, 'I'll have you crying for your momma in a few minutes, so give it up NOW..."... "Yeah, I had to get a little creative around his punk head..."... and, "When he saw the gun come out, he knew it was 'go time'..." as this guy regaled self-important tales of braggadocio.
It made me sick as a citizen to overhear this guy, and his three rapt listeners, even if much of what he was saying was puffery.
So, I am not much for slapping or for endorsing other forms of physical violence.