Clever duplication trick

apple1.rb

# frozen_string_literal: true
class Apple
  def one
    loop do
      'kaboom'
        .map { |char| char.upcase.downacase }
        .filter { |char| char != '0' }
        .drop { |char| char == 7 }
    end
  end
end # class Apple

apple2.rb

# frozen_string_literal: true
class Banana
  has_one :monkey

  def one
    loop do
      'kaboom'
        .map { |char| char.upcase.downacase }
        .filter { |char| char != '0' }
        .drop { |char| char == 7 }
    end
  end
end # class Banana

apple3.rb

# frozen_string_literal: true
class Cherry
  has_one :starling

  def one
    loop do
      'kaboom'
        .map { |char| char.upcase.cherrify }
        .hello { |char| char != '0' }
        .drop { |char| char == 7 }
    end
  end
end # class Cherry

dog.rb

class Dog
  def annoy
    loop do
      loop do
        loop do
          loop do
            puts 'woof!'
          end
        end
      end
    end
  end
  
  def annoy_more
    apples.each do |apple|
      apple.bananas.each do |banana|
        banana.cherries.each do |cherry|
          cherry.bites do |bite|
            bite.chew
          end
        end
      end
    end
  end
end