ear cropping and tail docking are now both illegal in the UK (although some people still do docking). I have to say that a rottweiler with a tail will look strange to me purely because I'm not used to seeing one with a tail. I come from a country where boxers have cropped ears so when I first got to the UK boxers look strange to me with their naturals ears, but I'm used to seeing them now and I think they look great with their natural ears. People also used to dock jack russells' tails but I am glad Snowy has a full tail and I think she looks great with a tail. So I am in favour of dogs with tails but I do also appreciate that there are medical reasons that require some dogs to be docked.