When I write "Credit No Credit", it reminds me how some colleges offers "Credit/No Credit" in lieu of grades. Either you get the credit, or you don't.
Every now and then after I worked on a book, my name would be left out when it's published. Here's another of those books where it happened again. It's for Thor #620.1 which I blogged about here when it was originally released. Recently, I got the comps and notice the missing credit.splash page I've inked.