Ladies, the wise words of Wonderbra should be ringing in your ears right about now - LIFT AND SEPARATE. Instead this wisdom is being ignored in favour of squishing and smooshing. The result is not too dissimilar from a couple of bald men having a forehead wrestling contest within the top half of your dress and, from our own youthful experimentation with cleavage boosting techniques on nights out, it's more than a little painful (although kind of useful if you need an impromptu storage space for your debit card).
More importantly, such chest transgressions mean no-one learned ANYTHING from the Great Boob Squashing Of 2011, as perpetrated by Jennifer Hudson's orange Oscars gown.
For balance here's a selection of Viola Davis' better fashion moments: