Crazy global variables

globals.rb

require 'singleton'
class G
  include Singleton
  
  attr_accessor :variables
  
  def self.[](var)
    variables[var]
  end

  def self.[]=(var, value)
    variables[var] = value
  end

private
  def self.variables
    instance.variables ||= {}
  end
end

usage.rb

require 'globals'

G[:wat] = 'that'
G[:wat] # == 'that'

Got carried away improving and refactoring this useless "feature" :D