Ths is used inside an object that clears out most of the Kernel methods
(like BlankSlate). It allows one to get at those methods.

  class BasicObject

    # ... undefines Kernel methods ...

    class Instance < self
      define_method( :method_missing ) do |meth, *args|  # &blk|
        Kernel.instance_method(meth).bind(self).call(*args) # ,&blk)
      end
    end

    def instance
      @__instance__ ||= Instance.new
    end

  end

For example:

  class A < BasicObject
  end

  a = A.new
  a.class  #=> NoMethodError
  a.instance.class  #=> A

I would be happy with the name "instance" except it does minorly
conflict with Singleton (not the eigenclass kind). Anyone have a better
suggestion for the name. Note, I originally choice "instance" because
of other methods like #instance_variables.

Thanks,
T.