Yes, it helps to briefly skim the book "Getting to Yes". (For those who can't spare the funds, it's at libgen.) Fear signals a weak bargaining position, and bosses are trained to take advantage of that instinctively. Really, it's their daily job (an aspect they unfortunately often find fun).
One must have backup plans. If you're privileged enough to be a dev, always try to have jobs lined up. (Especially going into a negotiation, where it's an option to follow through on the firing threat.) Show your face at local usergroup meetings if you can. Feel the safety of knowing there's multiple companies who'd hire you the next day.
Bosses often don't give a shit about your productivity per se. They do fear losing perceived "irreplaceable" devs... but you generally have to be one of their first hires, or somehow release some big projects alone which other devs would rather not maintain.
[Edit] Professional mask: see "Disciplined Minds: A Critical Look at Salaried Professionals and the Soul-Battering System that Shapes their Lives" https://en.wikipedia.org/wiki/Disciplined_Minds
Bosses are just people, and taking a bad attitude with them is likely to get one back whether they are good are bad people. It's just elementary game theory to take good attitude with them and it's healthier for you.
One must have backup plans. If you're privileged enough to be a dev, always try to have jobs lined up. (Especially going into a negotiation, where it's an option to follow through on the firing threat.) Show your face at local usergroup meetings if you can. Feel the safety of knowing there's multiple companies who'd hire you the next day.
Bosses often don't give a shit about your productivity per se. They do fear losing perceived "irreplaceable" devs... but you generally have to be one of their first hires, or somehow release some big projects alone which other devs would rather not maintain.
[Edit] Professional mask: see "Disciplined Minds: A Critical Look at Salaried Professionals and the Soul-Battering System that Shapes their Lives" https://en.wikipedia.org/wiki/Disciplined_Minds