In passing.

[slemslempike]

It really is intensely annoying to have done the grown-up thing and refrained from responding in anger because of the possibility of saying things that you would come to regret, only to realise that you wouldn't have regretted it in the slightest, indeed it's possible you would not have gone far enough, and it is now too late to say even some of the things that would be so satisfying because the moment has most definitely passed.