That's a hot delicate topic. Last company we had operators operating dangerous production machines. The machines were evolved enough not to injury anyone however when a safety fault occurred (light curtain, pressure mat, etc) it would really slow down the process. Each machine was expected to make "X" amount of product per hour. You could guess what was the #1 cause of not meeting numbers... The bathroom thing was also a huge issue. We looked into ways of diminishing a cell phone signal however it became a HR issue. Unfortunately because the world changed, we had to put up with it because they had a hard time hiring ANYONE vs the government bucks. Another issue we had to tolerate was chemical abuse. Whatever those pens are and smoking was so prevalent. You knew people were so baked however nothing could be done. As a plant manufacturing engineer I had to install cameras (theft), key card readers and locks (jaded boyfriends upset entering property), break bells (get people to from on time). I would go into work at 5a and have a line five deep waiting to talk to me. Mostly HR issues. ("Becky disappeared and come to find out she had two guys in the bathroom for 45 minutes" can we review cameras) (Jerald got sugar put in his tank last night), (Machine 5 was only 25% efficient). I put so much blood sweat and tears into that company. But it just wasn't worth my sanity and sobriety to tolerate. I truly feel for all you you who own businesses or in production management.