When I called moving companies last week to get estimates about my impending move, one of them asked me what I did for a living, and then what field I was in. I told him, then asked why he wanted to know. "Books," he said, darkly. "Always so many &%$# books."Yep. Always so many fucking books.
Update: Someone responds to that story with this one:
When I moved and mentioned to the mover that I am an academic he literally said "Ka-ching!" All those books add a lot of extra weight.
Of course, there's no analogous sound for the money us grad students spend to move, since pizza and beer don't really make noise.