#{sym.to_s}: #{args.join(" ")}" end def respond_to? sym, include_private = false true end end end Aquarium::Aspects::Aspect.new :around, :calls_to => :method_missing, :for_type => Aquarium::Echo do |jp, obj, sym, *args| if sym == :log p "--- Sending to log: #{args.join(" ")}" else jp.proceed end end https://github.com/deanwampler/Aquarium