It seemed like, lately, Severus was restarting lessons that had previously been abandoned. Though, he conceded, with how hard he had been hit by the damn Dragon Pox, he would have been in no position to give lessons in advanced gum chewing, let along Occulumency.
At least this time, he had managed to remove any and all memories that would have proved uncomfortable had they been discovered. Just as he was about to start counting minutes, ready to chide Harry for being mere seconds (or minutes) late, he heard a knock at the door.
"About time," He said, even if the corners of his mouth quirked up in an almost-smile. "It's been a while, hasn't it?"