Tex
My fave would have to be an obscure, but funny-as-hell little western short called "Tex, The Passive-Aggressive Gunslinger". It's about this guy, Tex, who kinda lives in his own little world in this little frontier town. Well, he manages to catch the attention of some badass looking gunslinger passing through town one day while he's in the saloon(he hears Tex has never lost a duel), and so they set up a duel for the next day. Well, Tex blows the guy off day after day cause he doesn't care, he has stuff to do(reading the daily paper, mostly). After about a week of trying to work out a duel, he finally gets Tex out on the street to shoot it out... And it starts to rain cats and dogs. Tex 'doesn't want to get wet', so he starts leaving. The badass gunslinger gets so pissed, he finally loses it and blows his own head off.
Fade out, a shot of Tex, smiling darkly, the dead gunslinger on the ground behind him.