how to destroy current object from constructor..?

Question

if we create a class and fro that class we created  six   instance  we  want only five  see example in comment section w ahve to  destroy  current object how like 

namespace ConsoleApplication1

{

class Program

{

static void Main(string[] args)

{

Employee obj = new Employee();

Employee obj1 = new Employee();

Employee obj2 = new Employee();

Employee obj3 = new Employee();

Employee obj4 = new Employee();

Employee obj5 = new Employee();

Employee obj6 = new Employee();

Console.Read();

}

}

class Employee

{

static int count = 0;

public Employee()

{

if (count == 5)

{

   // here we need to distroy na  current object 

}

else

{

count++;

}

}

}

}