I never knew Aussies could be born without their tails... Sara, you know soo much!!!! But I've heard of docking in many breeds (breed standard), and also fixing the ears so that they point up (ear cropping) (doberman and great dane)
Docking and cropping are very common, unfortunately. It's mostly just for cosmetic purpose, though docking some working/gundog breeds is important. Cropping should be illegal like it is in the UK and other European countries!