I've had to do exactly this. I sometimes write some code then realise that anyone less familiar with the details would look at it and see an "obvious improvemen

I've had to do exactly this. I sometimes write some code then realise that anyone less familiar with the details would look at it and see an "obvious improvement" which introduces a subtle bug. At least once I forgot to add a comment in such a case and luckily I got the question of "why not just..." in the code review.