Because I work 3rd shift, I am the only one on the shift in my role. I've literally worked my way up from entry level to where I am at. I understand the company's need to have my roles performed nightly and agree with training a back up..even if it's a hard pill to swallow. And in my mind, there is a difference to training someone to cover my absence and sharing my role. I hope this makes sense. In terms of music...used too be allowed but was taken away by new leadership.