I noticed that my DIS use increased greatly during finals week when I was stressed out and supposed to be writing a 30 page law review paper and studying. I just try not go on DIS during class though because people look at me strange.
I'm almost done with my second year of law school, but get lots of stress relief by planning my trip and going on DIS. Looking forward to June 2009 when I graduate (and try to convince my friends to go an a DL graduation trip!!)