KNN those sir that stay in pte house can exit the main door with the presence of their wife then maid go bathroom or maid room wait for sir to sneak in from backyard KNN after finish quickie come in from front door in presence of wife KNN
For sir that live in hdb will not be easy KNN my uncle have this plan but have not carried out KNN tell wife later you going downstairs then ask maid go in bathroom first KNN later when wife enter room shout out to wife dear I'm leaving now KNN then cheong to the bathroom while wife thought maid taking bath KNN after that maid come out rackey first when wife enter room again quickly ask sir to appear in living room KNN