me at 10am: ah I've got plenty of time to finish all this work, my class isn't until 4pm, I'll just faff around for a bit
me now, at 11:40am: oh shoot, I need to leave in less than 3 hours to get to class on time, and I gotta shower and shave, and eat lunch, and I have 2 quizzes to do and 2 and a half chapters to read aaaaaaa