This is my 2nd employee. The first one I am going to have to fire.
It’s due to a lack of effort. Phones and music are allowed due to the job being monotonous. Every time I pass by their office they quickly get off the phone.
I can tell when someone is trying or not with this specific job. Also, I have asked and stated to ask me any questions if needed. Expectations are clear.
This is the 5th day they are working for me. Do I need documentation?
It may your policies or more likely you simply hired the wrong candidate. You can keep the music/cell policies and cultivate a culture of “get results and this can be an easy job” or you can effectively punish good staff because you hired shit staff. Other commenters have suggested basically supervising them more and this that or the other thing. Just hire the right people and they will get their shit done and appreciate the respect you give them.
The only question that needs asking is: "have you adequately trained and supported this person. If the answer is yes, fire them now. Save yourself time and headaches and start hiring their replacement. If the answer is no, genuinely no, then take the time and make sure they are trained and supported. Then ask yourself that same question again.
How many times I have heard a business owner tell me how they should have fired somebody sooner but they wanted to wait and see. Yeah, 9 times out of 10, in my industry, they wait and get to see one of their commercial trucks flatten another driver out on the road. Like seriously not kidding. And why did they wait? Well employee X just had a kid or employee Y is new or employee Z is good friends with someone I know.