IMO, If you hate it, love it, somewhere in between, part-time package humper or full-rate driver, you have to show up early or at least on-time and give managers a sense of respect for your reliability.
In my opinion, reliability is greater than performance PPH/etc. Reliability is missorts, misloads, showing up every day or night on work nights...
I've missed 3.5 days of work since Aug 2004. I'm sure theres people who have better or even perfect attendance records. The point is to show that person has genuine interest in the day to day and also long-term success of the company.