Never.

I had a horrible manager who just wrote a list of vague complaints in his crap hand writing.

Later on he just took a picture of his notes, I swear the worst hand writing I've ever seen, and emailed it to me.

As a bonus this company expected employees to work multiple nights, and even though some of the directors did, my manager never did so.

Now change the title to personal information, like for example when you need to get your tire changed, and maybe I'll understand. But as far as at work, when you may need to share that information later, I have to disagree.