Homeless Nutter was my main villain character in "DC Universe Online", an MMO(RPG-ish) that I sunk a whole bunch of hours into, some time ago. Originally meant as a joke character - there are some giggles to be had, watching Batman, Superman, or Wonder Woman fight a bum - but soon I realized he was a pretty accurate (if somewhat hyperbolic) depiction of myself.
"The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one." - George Bernard Shaw