Just for fun

The following game is just an enjoyable little minature (micro-minature?) where a mate just fell into my lap right in the opening.

I guess that Black was so focused on his pawn-winning tactic, that he just forgot to evaluate the ensuing position.  The lessons here are: 1) It's not a good idea to initiate tactics in the opening before you have castled.  2) Whenever you are going to play a tactical sequence, you must analyse until you get to a quiet position (no checks or captures are left) and then evaluate that position.  Not doing so can leave you open to an embarassing exit from the playing hall while everyone else is looking at you and wondering what happened.