Tutorial LSP-Part2.swift

class Personage {
    func compliment() {
        print("Hi there")
    }
}

class Singer: Personage {
    func highFive() {
        if isGood {
            compliment()
        }
    }
}

class Waiter: Personage {
   func highFive() {
        if isGood {
            compliment()
        }
    }
}

class Thief: Personage { 
}