Does the Holy Father ever have an off day concerning homilies?

One thing that amazes me about Pope Benedict is that he can start of a homily with "I did not really prepare a homily today" and then go on and talk so deeply on a subject that you would otherwise be convinced that he would have to spend some considerable time writing it.

Amy has the homily in full which came from the Papa Ratzinger Forum. I really wish Teresa Benedetta, who does such wonderful and timely translation would post them also on a blog so that they would be easier to access and keep t rack of. The forums just are not easy to link and there is no RSS feed to easily follow it.