My friend and I had lunch at a pub yesterday. While we were eating, our waitress brought the bill, saying that she was going off shift. We settled up, including the usual tip, and she introduced up to her replacement.
The second waitress refilled our pop and cleared the plates. She didn't return to ask if we wanted anything further.
It didn't occur to me to leave her a separate tip—it just came to me today. Should we have? We are in Canada, btw, if that has anything to do with anything.