This is for you, ribit.
As a conscientious bra-fitter at Victoria's Secret, I want to make absolutely sure that I obtain the right fit, the right support, the right lift, the right bounce for all of my customers. So, after each fitting I run them through a little test to make sure everything is just so, don'tcha know!
As an example ...
http://img0.joyreactor.com/pics/post/bra-boobs-bounce-difference-1088626.gif
... these two customers passed the test with flying colors!

The essential American soul is hard, isolate, stoic, and a killer. It has never yet melted. ~ D.H. Lawrence