Will Smith goes on stage at the Oscars and hits Chris Rock then verbally threatens him from his seat

It is not going to go "either way" if the event is in company premises or promoted as a company party.
Idk, I've seen it happen, guy smacked another guy at a Christmas party. Next day, both showed up for work as if nothing happened.

But that's probably not what usually happens. Lol. People are weird sometimes.