Self-explanatory. Mine's a doozy: I've learned all the known oaths of the various corps from the Green Lantern comics, including that of the solo golden age Green Lantern and the Indigo Tribe, the latter of which currently exists only in the form of a strange new alien language no-one understands. Feel free to laugh right now. In my own defense, I drew the line at learning the Alpha Lantern oath because the Alpha Lanterns were jerks. So what about you guys? Chances are yours isn't as bad as mine, if that's any consolation.