Maybe there should be a thread "AS guide to Validating" with more examples! I am writing your comments down, great stuff!
ROTFLOL! Thanks, that's very flattering DR actually touches on validation techniques, but it's something that really deserves a whole chapter. I think I learned the most about validation from Retrouvaille and unfortunately there's no documentation involved, so it doesn't get shared much beyond word-of-mouth. That's a good idea though, it does deserve it's own thread