There is  a lot to be said about your personal space bubble. If you think about it on a physical level it stops us from walking into things.  I have adjusted my bubbles with boobs. You see for many years this has not been an issue. Now that my breast tissue is growing I am shocked to find that I no longer can take sharp turns. Cause it is very painful to smack them into a wall or something hard and unforgiving. There is another issue that is very embarrassing when you try to squeeze past people or tight spaces. I know this is funny when I look back but it does hurt when you forget about your space.