Ayaka Di'rutia
Troubadour
A dash can also be used to abruptly change an idea, such as one a character is thinking about something and changes their view or emphasis on it.
I.E.:
Jane knew that he was a meanie---a great big meanie. [that is supposed to be an em-dash]
I.E.:
Jane knew that he was a meanie---a great big meanie. [that is supposed to be an em-dash]