No mention of laughter even being a factor.

I shared the part where it mentioned it being a factor.

No, not required, but overall or most or more than half or more frequently or insert synonym here for most...

Generally a good practical joke will have the victim to be able to laugh after the fact and not be like you assaulted me. Assault isn't a joke.

Since you don't know what most means you may not know what assault means ...

violent physical attack, as with blows.