I can’t stand office martyrs who gladly sacrifice their own health or happiness for the good of the company.
Couple of years ago I worked for a boss who would put off surgery for a month because someone rescheduled a meeting that was later canceled.
She would expect us to do the same. I was told of a meeting that I should attend the following morning (the meeting was scheduled for weeks but I was invited a few working hours before)and when I declined, because I had a doctors appointment that I would be charged for and that I needed to go to for my health I offended her. We kept working together after but I was never the first asked to meetings with executives.