Two completely unrelated factoids

I saw these in this week's issue of The Week.

Factoid 1
Women who have their breasts surgically enhanced are three times more likely to commit suicide than other women.

Which leads me to ask: is having surgery a contributory factor to suicide, or are women who are depressed/stressed/emotionally imbalanced drawn to extreme methods of reinvention, e.g cosmetic surgery? Or is is just that having a breast enlargement is an indicator that you're stuck in a lifestyle that it's hard to exit from (e.g. the porn industry) and so the "only way out" is suicide?

Factoid 2
In 1935, 7.5% of Germans were members of the Nazi party; among teachers that figure was nearly one-third.

Which begs the question: are teachers more likely to become Nazis, or are Nazis more likely to become teachers? And is there a discernible difference?