Beware: Visibility works on a per class basis and does not prevent instances of the same class from accessing each others protected/private properties/members! I consider this a real cop out from an OO perspective and doesn’t offer me any level comfort.
I was sent this undercover report on Jiffy Lube today. It exposes their practice of upselling all kinds of services and not performing them. The experiment was constructed by placing small pinhole hidden cameras all over the vehicle and also numbering parts so they could be identified upon later inspection. They visited 9 stores and 5 blatantly ripped them off hundreds of dollars. When confronting the district manager of Jiffy Lube, the man denies his identity and insists he’s a customer who’s redĀ Camero was in the drive bay, but in reality the carĀ belongs to some kids. Jiffy Lube Corporate later confirms the mans identity.