There will be times that you will review something that makes you want to push back your chair and walk away shaking your head. You might decide to just review something else instead. But what if you really have to review it? If it was written bya friend who wants you to take a look at it, or if you are PMed to review it. It happens, even if your name isn't in green. It's never a good idea to just say "Sorry, but it sucks." People have feelinngs, of course. But you also haven;t done anything to help them fix the problem, or even identify it. It's ok to say you don't care much for it, but give specific reasons. If you can find something you do like about it, put that at the beginning of your review, and maybe finish with it as well. And I would recommend you don't write a double screenful listing every misspelled word or punctuation error. It's too much to absorb, and you're making more work for yourself. If there are a couple glaring spelling mistakes, particulary repeated ones, point them out as examples. The same with a recurring punctuation error. Give an example or two, and explain the rule that would help make it right. Gocus on the two or three worst problems with the piece. And if part of it is that it's a genre you just can't stand, say so. "I have a bias against lumberjack stories, so tke that into consideration when reading my review." That takes some of the pain off the author. I'd really like to hear what other approaches people take in this situation, other than simple avoidance. A negative review can still be helpful rather than hurtful, and no review at all is also no help at all.