The success of a dive shop is not how well you treat the customers. Its all about the marketing strategy/advertising. Dive shops make very little from experienced divers. The profits come from new customers starting with the classroom. Buying new gear,trips during the first two years. You wouldn’t walk into any other retail shop and talk to the salesman about life for an hour every month or so. Its a business not a bar. Get the hint when your ignored because you never buy anything. Its bad business practice to waste time with a no sale customer month after month. It doesn’t pay the bills.Get real !