Greedy behavior

I have experienced a lot of greedy behaviors. For one instance when I was working over the summer I had this coworker that was very greedy. What every this person had they had to have more. We get food free being that we worked with the concessions. So that person would eat and then get more and more food. Then take bags full of food home. I can't be the one to judge but that person took advantage of something and it wasn't right.