I don't mean to perpetuate the stereotype that all grad students are reduced to a social position where they're incapable of talking about anything except grad school and don't know how to interact in the company of people who aren't also grad students -- but this #whatshouldwecallgradschool thing is occasionally pretty great:

[caption id="" align="alignnone" width="287" caption="When I Aspirate The Pellet"]Man swinging a golf club, accidentally sending a backpack over a cliff instead of a golf ball[/caption]