Use a class whose sole responsibility is to handle the method_missing cases.

isolate_dynamic_receptor.rb

# Despite the added complexity, method_missing is a powerful tool that needs to be used when the interface of a class cannot be predetermined.
# Use Isolate Dynamic Receptor to move the method_missing behavior to a new class: a class whose sole responsibility is to handle the method_missing cases.

class MessageCollector
  instance_methods.each do |meth|
    undef_method meth unless meth =~ /^(__|inspect)/
  end

  def messages
    @messages ||= []
  end

  def method_missing(sym, *args)
    messages << [sym, args]
    self
  end
end

class Recorder
  def record
    @message_collector ||= MessageCollector.new
  end

  def play_for(obj)
    @message_collector.messages.reduce(obj) do |result, message|
      result.send message.first, *message.last
      result
    end
  end

  def to_s
    @message_collector.messages.reduce([]) do |result, message|
      result << "#{message.first}(args: #{message.last.inspect})"
    end.join('.')
  end
end

class CommandCenter
  def start(s); puts s; end
  def stop(s); puts s; end
end

recorder = Recorder.new
recorder.record.start('LLLLLL')
recorder.record.stop('RRRRRR')
recorder.play_for(CommandCenter.new)