What were young Scrooge's days like in boarding school?

Scrooge is
very happy when his sister Fan comes to take him from boarding school, a scene the Ghost of
Christmas Past has him revisit. Fan, who is younger than Scrooge is, comes in overjoyed and
says:

I have come to bring you home, dear brother! said
the child, clapping her tiny hands, and bending down to laugh. To bring you home, home,
home!

When we learn some details of the boarding school,
we come to understand that it was a miserable place, where the students were kept frightened,
ill fed, and cold. For example, the schoolmaster puts Scrooge in "a dreadful state
of...