A part of Severus wanted to rant, to demand his personal space, but another, smaller, hidden part, forced him to keep his mouth shut, every time Harry Potter came to visit. For the last weeks, the young man had developed a habit of appearing mid-morning. He apparated into the small back garden, greeted Severus with a brief hug when he was out already, or touch his arm if he was brewing.  Then Harry would situate himself on the porch. If the Potion Master was working, he left him be, but during the last week, Severus had caught himself adjusting his brewing hours to not interfere with Harry's visits. It was never smart to let one's master wait. At least that was what he told himself.