The division within the company I worked at the last 26 before retiring never had respect for private life.
In that time, I never went on leave without being phoned for advice, information or suggestions regarding problems with analytical equipment under my responsibility. Even after leaving the company on retirement, I was still being phoned. The worst one was when my wife and I had a weekend breakaway for my birthday, I was caught up in a call for almost two hours when they've been struggling with one specific online analyser, of which I was one of two in the country factory trained on it. My wife sure wasn't happy about that call.
I submitted my intention three months before my end date even though 30 days was the requirement. What a big mistake that was. When word got out that I was planning to leave, I was inundated with requests for assistance. There is a flexible working hours system in place where overtime worked could be taken off. I had so much to do before leaving, I accumulated exactly 30 hours of overtime, and because of everything that was requested from me to before leaving, all requests to take of overtime was denied, thus the 30 accumulated overtime hours that I forfeited.
I was supposed to be put on fixed hours the last month of employment but was kept on the flexible working hours because they knew I would work diligently and longer hours to attend to all the work request piled on me.