If I encountered code like this on the job, I'd feel obligated to let someone higher up know about it. I know this isn't a very constructive comment, but I don't really have much else to say :)
If you're pulling "patterns" directly out of GoF and trying to use them in Ruby code, you're probably doing it wrong. Put your hands in the air, step away from the UML diagram, and read: http://norvig.com/design-patterns/
