I have some Indian friends who have had their own restaurant for years. Two years ago they realised there was a problem with couriers, their own delivery team and customers collecting takeaway, constantly coming through the door, so they made some alterations. They built a small lobby in the entrance area, with a door to the main restaurant and a separate door to a service counter serving the takeaway trade. Dining-in customers entered the restaurant and takeaway customers, delivery staff and couriers entered the service area door, problem solved! He did lose half his front bar area and one table for four, but he said sooner that than have many dissatisfied customers and lose trade! He is a very shrewd businessman and has an extremely successful, popular restaurant, in an area where many have closed, especially recently!