I'M A SLAVE 4 U—David Graeber, the radical anthropologist (not like a Ninja Turtle) who helped organize the first-ever Occupy Wall Street general assembly, plumbs the history of debt in his new book Debt: The First 5,000 Years. Turns out that the noble origin stories about capitalism aren't what they seem. Also, you're probably a slave. DCT
Alberta Rose Theatre, 3000 NE Alberta, 8 pm, $6-7.50

BUFFY TRIVIA—Sure, you say you're a Joss Whedon fan... but how much do you really know? Put your nerd money where your nerd mouth is with Whedonverse Geek Trivia, where you'll be queried about Buffy the Vampire Slayer, Firefly, and Dollhouse as well as special questions contributed by Dark Horse Comics Editor Scott Allie! Plus $200 in prizes to boot! WSH
Kennedy School, 5736 NE 33rd, doors at 6:30 pm, FREE