You think you’ve read everything and then you land over on Ask a Manager and see this:
my boss is using my email account to impersonate me
You have to read the entire letter to get the whole creepy effect. The most disturbing part may be the fact that the writer has apparently omitted quite a few details in order to keep her letter short.
The advice is exactly what you would expect: confront him, talk to HR, think about getting a different job.
It’s interesting that we seem to be seeing more and more of this kind of thing. The stock explanation is that technology is blurring the lines around what is and is not appropriate, but I don’t think so.
This doesn’t seem like much of a “blur.”