The door of Scrooge’s counting-house was open that he might keep his eye upon his clerk, who in a dismal little cell beyond, a sort of tank, was copying letters. Scrooge had a very small fire, but the clerk’s fire was so very much smaller that it looked like one coal. But he couldn’t replenish it, for Scrooge kept the coal-box in his own room; and so surely as the clerk came in with the shovel, the master predicted that it would be necessary for them to part.
A Christmas Carol by Charles Dickens
What do Scrooge's actions toward his clerk suggest about their relationship?