Bad cabling job
There is one thing I really, really hate, and that is when system integrators take short cuts and do shoddy jobs, like the one above. Take a look at this. This is a situation that I had to face once at a client’s place. The previous installers totally fucked up the cabling and as a result, there was a lot of issues like dropouts from the audio conference mics, buzzing audio and the like. I really, really wish that system integrators would do a responsible job because it seriously hurts us all in this business.