In "A Christmas Carol", when the clerk gets off work, he leaves, goes down a slide twenty times, and then runs home:
The clerk promised that he would, and Scrooge walked out with a growl. The office was closed in a twinkling, and the clerk, with the long ends of his white comforter dangling below his waist (for he boasted no great-coat), went down a slide, at the end of a lane of boys, twenty times, in honour of its being Christmas Eve, and then ran home as hard as he could pelt to play at blindman's buff.
Why does the clerk go down the slide twenty times? The story says "in honor of its being Christmas Eve", but I'm failing to grasp the connection. I'm not very familiar with Christmas customs, but I've never heard of going down a slide being one of them.
If this was the clerk going down the slide with his kids, that I'd understand, but this is apparently him going down the slide before getting home and seeing his family, as an adult, waiting in line for the slide with a bunch of young boys. This strikes me as a bit odd.
Why does the clerk do this? Why is this included in the story?