There's a nice blog I like to read, written by someone who only calls herself The Intern. Where does she do her internship? She works for publishers and sometimes for agents. And she tells all (okay, she tells some) on her blog.
Here's a post where she attends a dinner, surrounded by agents -- who talk about the submissions they've seen. This is not a Submission Fail discussion. It turns out that agents talk about "the one that got away," and they compare notes. Click on over and become a fly on the wall at this discussion.
(Now I can't get the tune of "It's a Small, Small World" out of my head.)