My parish, which I decline to mention lest the Liturgy Police raid the place, also has regular - well, three or four times a year - "guest speakers," usually parishoners trained in theology. These homilies are 300% better than the ones preached by the priests, which is more than understandable when you reflect that the priests have to preach Sunday after Sunday after Sunday, whereas a guest might preach once in two years. I probably have one or two good homilies in me, but not one every week!
I just can't quite get over the pastor thanking his parishioners for the success of their annual "Caberet." A parish caberet? Wow. Just...wow.