Sometimes, women can be real bitches. Lying, manipulating, using, cheating, gold digging, and blue-balling. God, they can be bitches. Sometimes, they deserve to be dumped in a horrible, traumatic way that will scar them for life. Don't get me wrong. Men aren't saints either. Especially if they do any of these...
Pick a day when she has an especially long work shift. After she leaves for work, move all her shit onto the porch and change the lock on your door. Then, when she gets home from work, close all the blinds, leave all the lights off, and don't answer the door or phone.
Even better, pick a day when she has an especially long work shift. After she leaves for work, move MOST of her shit onto the porch. Keep the stuff you like, such as her TV, computer, furniture, or any pets. Change the locks. Invite another woman over, and be sitting in front of an open window making out with her, so when your girlfriend gets home she sees you. Then, when she starts yelling and screaming, call the cops. Then, give her the finger.
Take her on Jerry Springer and tell her you're really a woman who had an operation.
Seduce one of her friends or relatives, then tell her how much better they were than anything you've ever had before.
Call her parents and tell her exactly how long it took you to get her naked.
Move to a different town without telling her.
If her mom is a MILF, seduce her mom.
Take out an ad in the paper telling everyone what a whore she is.
Deflower her little sister.
Get someone else to have sex with you, and time it so that it's happening as she's getting home from work so she's sure to see you.
Take her to a sporting event and pay them to flash "There's someone else" on the scoreboard at halftime.
Take her to a sporting event for which you've actually bought three tickets and given one to another female friend. Sit next to your friend, talk to her all through the game, then leave with her.
Get her super drunk, then leave her butt naked out in the middle of a field somewhere with a note that says "Sorry, it just isn't working out."
Invite all her friends and family over for a surprise party for her. Get a jewelry box to pretend you have a ring. When she's there, quiet everyone and tell them you have something to say. Get down on one knee, and say "I'm breaking up with you," then run like hell before all her friends and family realize what just happened and kick your ass.