Excellent. A good lesson to quickly jump on your opponent if he doesn't castle soon enough. Well done.

There is another set of moves that is kind of interesting IMO... In fact, the tactics after 1.Nd4! are really pretty intense. (*there's an error in the notes to continuation shown below... In my notes I say 2.g3 loses a piece to Na5... I meant to say 2.Qg3 loses a piece...)

nice:)