Example of using Protected methods for comparisons

competitive_eater.rb

class CompetitiveEater
  include Comparable
  
  def <=>(other)
    spicy_tolerance <=> other.spicy_tolerance
  end
  
  def initialize(spicy_tolerance)
    @spicy_tolerance = spicy_tolerance
  end
  
  protected
  
  # a secret, other non-eaters won't understand
  # but we know this is the most important metric
  attr_reader :spicy_tolerance
end

one = CompetitiveEater.new(1)
million = CompetitiveEater.new(1_000_000)

puts "is one better than one million?: #{one > million}"