In my particular location management tries to fit entirely to much volume into a four or five hour shift. In my opinion in order to get that much volume out, an eight hour shift would be much more reasonable. I personally was told by a full time supervisor that in my time period at the company,three years, I had loaded more packages than any other employee, but when I voiced my opinion that as the company grows management is asking to much of their hourly workers in such a short period of time they told me I just needed to "get in there and do my job." When I tried to reason further I was told by a member of management that "You need to watch yourself you now have a target on your back to get fired." I often leave a five hour shift feeling like I have worked a very hard ten or twelve hour shift comparable to when I used to work asphalt construction.