You just wanted to tidy up that one ethernet cable. Maybe route it behind the desk instead of across the front. Simple cable management, right? Wrong. You've now entered a temporal vortex where unplugging the HDMI somehow corrupted the BIOS, the DisplayPort refuses to be recognized, Windows Update decided NOW is the perfect time to install 47 pending updates, and your wireless mouse dongle has achieved sentience and fled to another dimension. Your GPU drivers are having an existential crisis, the monitor is stuck at 640x480, and for some inexplicable reason, the printer on the other side of the building stopped working. The cable is cleaner though. Worth it.