gistfile1.rb

class Man
  def self.setup
    puts caller.inspect
    puts 'im a man'
  end
end

class Woman
  def self.setup_man
    Man.setup
  end
end

class << Man
  puts instance_methods.inspect
  instance_methods.each do |method_name|
    original_method = instance_method(method_name)
    undef_method(method_name)
    define_method(method_name) { puts caller.inspect; send original_method }
  end

end

Woman.setup_man