Depends.

If the guy said sorry like in your story he obviously Canadian.

You do that in Australia you either get punched or a chicken shit who has his ego so far up his anxiety he makes an effort to talk back, fails and jumps out on the next train stop afraid you’re gonna punch his gizzards. (But hey it was effective non the less)

If it’s in America you just created another school shooting what with traumatizing a student by asking him to turn down his device and now the world must pay.