gistfile1.rb

Animal = Class.new do
  def initialize(name)
    @name = name
  end
  def speak
    puts "my name is #{@name}"
  end
end

Dog = Class.new(Animal) do
  def speak
    puts "my name is #{@name}, I have just met you and I love you, SQUIRREL!"
  end
  def bark
    puts "woof!"
  end
end

jimmy = Animal.new("Jimmy")
jimmy.speak

doug = Dog.new('Doug')
doug.speak
doug.bark