A very simple example of how to install a universal logger for all Objects, that responds differently depending on the Object class

monkey-patching-101

class Object
  def self.ltlog(obj = self)
    puts "class Hello"
    if obj.class == Class then
      puts obj.to_s
    else
      puts obj.class.to_s
    end
    if obj.kind_of?(String) then
      puts "Special string object handling here"
    end
  end
  def ltlog
    puts "Hello"
    self.class.ltlog(self)
  end
end

Object.ltlog
# "class Hello"
# "Object"
"xyz".ltlog
# "Hello"
# "class Hello"
# "String"
# "Special string object handling here"