It was nice to read from you again. It was a long time (ok maybe I was not attentive enough :p).

how nothing ever is written in stone when it comes to human biology and psychology

This actually holds for anything, in all domains of science. This is what the scientific method consists in after all.

On different grounds, is oxytocin also present in males, or is it female-only? This is not clear to me (I know I could do some research myself, but it is funnier to leave a comment ;) ).

"Given the right circumstances, oxytocin may help promote the acceptance and integration

This could lead to interesting consequences (even if only the happy fraction of the population is touched)… But again, was the test samples only made of females, or of both males and females?

That option of avoiding responsibility is there for you but is not very beneficial and almost never has positive effects.

Avoiding responsibilities… I am so surrounded by this kind of people for many many many years. I don’t understand it. If one does something wrong, well one did it… So one should just assume it and face the consequences. This is however very hard for most people (from a statistical sample made of the people I have met during my life).