This was decades ago.
Not even an hour on the job. I was early 20ish, new to a city, answered an ad for an art gallery receptionist. Had the interview at the gallery, guy seemed straight-forward, I got the gig, was told I'd start in a week. That night, around 2am he started leaving phone messages, saying we needed to have a meeting immediately. I needed to be at his house by 6am. Went from inappropriately sweet to hoarse with yelling down the phone at me within a day. Call after call at all hours for a week. Told me at 8pm on a Saturday I needed to bring him donuts at his house by 9. That I needed to go shopping with him for a new skirt that would suit the office better. That I needed to respond immediately whenever he called. Literally did the "Don't you know who I am?" "I can destroy you with a snap of my fingers," "Don't you understand what an opportunity this is for you?" whole shtick.
Didn't even make it to the first day of the supposed job. Changed my phone number. Moved again.
The other was half a day, but not making it past the training phase of a call centre job probably doesn't count.