Why does T. Want to destroy Old Misery's house?

There is no reason explicitly stated in the story as to why T. wants to destroy Old Misery's house, but there are some clues. For example, when T. is giving his orders to the other boys, the author writes that it is "as though this plan had been with him all his life, pondered through the seasons." The implication here is that T. has perhaps always wanted to destroy something, and Old Misery's being away for a few days gives T. the opportunity to do act on this desire.
Later in the story, T. admits to not hating Old Misery. He says, "Of course I don't hate him . . . All this hate and love . . . it's soft, it's hooey. There's only things." This seems to confirm that T. destroys Old Misery's house for no other reason than the pleasure he derives from destroying things. T. seems to be something of a nihilist or maybe even a psychopath. He attaches no emotions—positive or negative—to anything, including the cold, methodical destruction of the house.