I remember back in the fourth grade when my teacher was out sick and then they brought a sub for her. Turned out the sub was my former kindergarten teacher and since she had most of the students in my class before, she remembered everyone's name and could remember some details when we were still kindergarten.

Who she taught a few hours before on the same day. (to be fair she had only had that class a few times) I don't know if this is a good or bad thing.......