I work PRN and go to school as well. At first, I used to pick up a lot of extra night shifts. I stopped picking up because my job sucks, tired of working short and they don't care about their employees. Thank goodness I don't need the extra money. They call me all the time about picking up extra shifts. I told them I only work 11-7. They always try to get me to work 7-3 and 3-11. They even be asking me to stay over after my shift. Now, my job has started texting me. It has got to the point where I just ignore their phone calls and texts. I have no problem saying "No." Only go to work and pick up when you choose. Don't feel bad. To hell with what your nurses and co-workers say or think.