Dont ever do this evar!!!

single_attr_accessor.rb

#!/usr/bin/env ruby -w

class Foo; end

f = Foo.new
f.instance_eval do 
  class << self
    attr_accessor :baz
  end
end


f.baz #=> nil
f.baz = 'zomg'
f.baz #=> 'zomg'


g = Foo.new

begin
    g.baz
rescue NoMethodError
    puts 'There is no method BAZ!!!'
end

begin
    g.baz = 'ugh'
rescue NoMethodError
    puts 'Seriously why would you ever do this?!!'
end



puts 'WHAT THE FUCK MAN'