A mildly insulting comment hardly rises to the level of attempted murder. Consider fight outside a bar, if you want a real world analogy: if nobody is seriously hurt, and no property damage, police can tell people to break it up and go home, without arresting anyone. Same for letting a speeder or someone with a broken taillight off with a warning.
In any case, I fail to see how discussing this further would be productive, even if it wasn't off topic.
Deve essere bello il Canada... In Italia ti prendi comunque il reato di rissa
