Friday Frivolity: An Interpretive Puzzle

I have been thinking about this sign in my fitness center’s locker room for some time.  I think about it every time I walk into the locker room using my cell phone to listen to a podcast.  

Am I in violation?

I surveyed my students.  One section said, “No bruh, everyone needs their tunes at the gym.”  The other section ordered me drawn and quartered, asking why I had to go into the locker room at all and questioning my taste in podcasts. 

But I was born a History of Byzantium listener, and I’ll die a History of Byzantium listener!