Mick, I'm not taking a slap at the RC Church. I just think that there are more important problems facing it than whether or not to celebrate St. Patrick's Day during Holy Week.
To be honest, I've wondered for years why the Catholic Church (and all the other Christian churches) are so mournful between Palm Sunday and Easter. Wouldn't it be better to celebrate the Salvation and Redemption of mankind by the willing sacrifice of Himself by the Son of God? But then, I think celebration is pretty much always in order.