"Did you think Damon was the brains of our merry little band?" The pot shot at his brother is again a way of weaving his frustrations with himself into a complicated circle in which if you squint, you can see that he's actually berating himself. Damon's his problem, etc. The self-mocking is in there. Somewhere. (Truth is, usually, it's either a combination of him and Damon or Alaric taking charge of all of them. But oh, details, details.)

Stefan makes quick work of digging the hole, wiping sweat off his brow as he climbs out of the shallow grave to retrieve the body, tossing it inside. Then begins the burying process, being careful to pat the ground down when he's finished in a way that makes it look as undisturbed as possible. You can thank decades of cleaning up after Damon's sloppy kills for that.

"There." He sticks the shovel in the ground and leans up against it. "That should do it."