you are a computer lab supervisor in a library,a position that involves opening or closing the computer labs and helping students with problem such as printing,working email and so on near the end of each term,the labs become vary busy , and the lab supervisor are pressured by the students to stay or to leave a student unattended in the room .to night when you announced that the lab was closing for the night,two student requested you to let them stay longer . one student said she had about. 25 minutes of work left and she had to turn in her paper early tomorrow morning.the other student said he had waited for a computer terminal for almost an hour to finish. and argued it was the school 's fault since he was at the lab but could not get on a machine