using System;

public class Program

{

    public static void Main()

    {

        var kottan = new Kottan("Jordan");

        var unMan = new UnfortunateSneakyMan();

        unMan.FeedAKotten(kottan);

        Console.WriteLine(kottan.Name);

        var man = new SneakyMan();

        man.FeedAKotten(ref kottan);

        Console.WriteLine(kottan.Name);

    }

}

​

public class UnfortunateSneakyMan

{

    public void FeedAKotten(Kottan kottan)

    {

        //abortive attempt to replace the kottan

        kottan = new Kottan("Tom");

        kottan.Eat("nice food");

    }

}

​

public class SneakyMan

{

    public void FeedAKotten(ref Kottan kottan)

    {

        //you'll receive other cat

        kottan = new Kottan("Tom"); 

        kottan.Eat("nice food");

    }

}

​

public class Kottan

{

    private readonly string name;

    public Kottan(string name)

    {

        this.name = name;

    }

    public string Name

    {

        get { return name; }

    }

    public void Eat(string food)

    {

    }

}