This is a serious question. Please no "try it and let us know" type of answers. This shouldn't vary by region or supplement, but I could be wrong. I do understand that leaving in the middle of work without prior agreement constitutes job abandonment and can lead to termination without progressive discipline. (right?) But, what if you walk into the building, DO NOT "punch in", then leave (people would have seen you walk in). Would this be treated the same and would the union uphold a termination for job abandonment? Or, would this be considered a "no show"?