I stood frozen at the lounge door in shock. I had arranged to inspect the renovation of the apartment when my tenant Zach said he would be at work. But that chat was a couple of weeks ago, and here he was on the sofa. He hadn't seen me. He had airpods in his ears which explained why he had not heard me coming in. His eyes were closed. His trousers and underpants were pushed down to his ankles, and his T-shirt pulled up, u...