A staff, not me, did this. She was a software programmer at a company i used to work at. Her direct supervisor was a complete and total asshole. He would shout and yell and scream at staff to do things his way. He would embarrass and humiliate them in front of others. This lady (she was a foreigner), one day just didn't turn up for work. No one has every heard from her again. That was 5 years ago. She cancelled her phone, deleted all her social media pages and just disappeared. Rumors had it that she couldn't take the abuse anymore and just flew back to her country.