As long as we're hijacking with recounting of oddball characters, I might as well bring up a few of my favorites:
The half-dryad archer whose bow was made from a stave of heartwood his mother gave him from her tree (how many other non-monk characters are biologically related to their weapon?)
The guy who tried to gain power by consuming the soul of a pixie, only to screw up the ritual and end up with the pixie's voice in his head for the rest of his life
The party rogue who ended up as a front-line melee fighter, took cleric levels without the other PCs finding out for quite some time, and carried on a long-distance romantic relationship with an evil NPC
The illusionist that has Lovecraft-esque nightmares every night, and tends to use his illusions to show them to his enemies
The half-dryad archer whose bow was made from a stave of heartwood his mother gave him from her tree (how many other non-monk characters are biologically related to their weapon?)
The guy who tried to gain power by consuming the soul of a pixie, only to screw up the ritual and end up with the pixie's voice in his head for the rest of his life
The party rogue who ended up as a front-line melee fighter, took cleric levels without the other PCs finding out for quite some time, and carried on a long-distance romantic relationship with an evil NPC
The illusionist that has Lovecraft-esque nightmares every night, and tends to use his illusions to show them to his enemies