Last month, Xeni blogged about the photoshop disaster that is this Ralph Lauren advertisement, in which a model's proportions appear to have been altered to give her an impossibly skinny body ("Dude, her head's bigger than her pelvis"). Naturally, Xeni reproduced the ad in question. This is classic fair use: a reproduction "for purposes such as criticism, comment, news reporting," etc.
However, Ralph Lauren's marketing arm and its law firm don't see it that way. According to them, this is an "infringing image," and they thoughtfully took the time to send a DMCA takedown notice to our awesome ISP, Canada's Priority Colo. One of the things that makes Priority Colo so awesome is that they don't automatically act on DMCA takedowns. Instead, they pass them on to us and we talk about whether they pass the giggle-test.