Most non-audiophiles do not know that your expensive components are easily leading to expensively damaged. Curiosity is human nature so touching is not abnormal. So you cannot expect them to “automatically” know, you have to advise them and maybe take steps to protect your gear.
How to prevent visitors from touching your system
It’s amazing, no matter if it’s your friends or just anyone else walking into your listing room, what is the first thing that happens? They have to reach out and touch something. Like this is the first piece of real equipment they have ever seen. Has anyone else had this experience? What can be done to prevent this except posting signs or telling people every single time? Gets kinda frustrating.