Well defined boundaries and rules are necessary for a stable society as well as maintainable source code.

It isn’t the fact that you screwed up that matters.  It happens.  Your character is revealed in what you do next.

No matter how challenging, or how unhelpful someone else is towards you — always be helpful to them.  Turning someone down for help will only make you feel bad and your repeated assistance over time may just encourage others to be as helpful  too.