"Rhapsody in Blue" by George Gershwin
Apparently, there are people out there who aren't in grad school. I know! I was shocked to discover this too! What's worse is that these people don't know about grad student etiquette. Allow me to illustrate:
Of course, once the said grad student has completed his/her work, it is appropriate... nay, expected... that you will inquire after his/her thesis. This will give the poor grad student a few moments of joy as he/she explains how he/she has successfully linked disability to the courtship narratives of Jane Austen (for instance). Keep in mind that all joy will be snatched away the moment he/she meets with his/her supervisor to discuss the final draft. After this, you are once again forbidden from inquiring after the Thesis until the aforementioned grad student has done the Kraft Dinner Happy Dance of Potential Freedom™ (N.B. This dance should not be confused with the Haliburton Iraqi Happy Dance of Potential Freedom™, although "Mission Accomplished" banners may be present at both).
If there are any further questions, you can find me on the "Undergrads have Cooties" forum on Facebook.