@TechConnectify@mas.to I've adjusted door closers both in the office and at home long before you made that video. I probably broke some "safety regulations " and "insurance policies" by doing that myself instead of waiting for my employer or my landlord respectively to eventually call an over-priced "professional" to adjust a few screws. But I was sick of me and everyone else getting startled every time someone came through these dang doors so I just did it. Only problem over here in Germany is that we usually don't have AC in private homes and the temperature differences between summer and winter seem to require adjustment of the door closer. At least the ancient one we have at my place seems to have that problem where it sometimes doesn't have enough momentum for the lock to latch properly.