Controlling bosses can make the workplace a living hell, but winning their trust is essential to improving office relations.

So says Kaley Klemp, an executive coach and co-author of “The Drama-Free Office: A Guide to Healthy Collaboration with Your Team, Coworkers, and Boss”.

“Trust is a big, big deal,” said Klemp, who wrote the book with her fellow coach and dad, Jim Warner. “Controllers are looking for those who are on their side.”

With “National Boss Day” right around the corner on Oct. 17, Klemp said now’s a good time to think about how to smooth things over with an unruly micromanager before a bad situation gets worse.

According to Klemp’s statistics, some 46 percent of employees work for or have worked for an unreasonable boss at some point in their careers.