Study how to make a class myself handling indexes

Study_SelfIndexingClasses.cs

/*
     This was a study source on how to do indexes of my own in C#.
     This study can really broaden my views on a few things in C#, and maybe also help me to get rid of a few issues I'm currently suffering in C#
     
*/

using System;

class test {
	public string this[string key] {
            get {
                switch(key){
					case "Dog": return "Woof!";
					case "Cat": return "Meow!";
					case "Bird": return "Tweet!";
					case "Cow": return "Moo!";
					default: return "Sorry, I don't know that one!";
				}
            }
            set {
                Console.WriteLine($"And why must I change anything about your f*ing {key}?");
            }
        }
}

public class Program
{
	static void p(string a) => Console.WriteLine(a);
	public static  void Main(){
		var t = new test();
		
		p(t["Bird"]);
		p(t["Dog"]);
		t["car"]="LALALA!";
	}
}