using System;

public class Program

{

    public static void Main()

    {

        var emp = new Employee();

        GuardIsTrue(emp.Id > -1, $"Employee {emp} is malformed");

        Console.WriteLine("Oh wow, no exceptions");

    }

    public static void GuardIsTrue(bool condition, string message)

    {

        if(!condition)

        {

            throw new Exception(message);

        }

    }

    public class Employee

    {

        public long Id {get;set;}

        public override string ToString()

        {

            Console.WriteLine("This takes a million years because reasons, and it just got called.");

            return "bob";

        }

    }

}