Parody can be fun but only if you are taking the mickey out of the original subject. Straight copies of a good idea is, er, well stealing an idea. I remember a few years ago when Marks and Spencer first brought out their food porn ads I wrote and gathered clips for a Sandi Toksvig version.
Well within in a couple of hours of it going to air the M&S PR department gave us a call to say they were 'very cross' and would like us to pull the promo, which we, er, didn't. I guess the fact it hit a raw note at M&S head office meant it worked? Judge for yourself with the SoundCloud clip above on www.creativeradio.com.