[nbotary]

I'm sure that if he woke up one morning with a horse head laying in the bed next to him and a nice little note from you, he might start to change his ways...

Just out of curiosity, where is your father (or step-father if your parents are divorced) in all of this??? If he's around, does he know any of this is going on??? If any man ever raised a hand to my daughter, you can bet your ass you'd be seeing my face on every newscast in the country!!!

First of all you need to use your brain to beat this guy. Here are my suggestions...

You need to contact the authorities and find out what the law does and does not protect you from. You need to be fully aware of any and all consequences of any physical action that occurs from either party. You may be underage, but that doesn't mean you won't spend any time in juvie if you do something stupid. Unfortunately, your sister is the only one who can ultimately put a stop to him and his behavior by separating or divorcing herself from him and getting him out of your lives.

I agree with zefff in that you should try and document everything as often as possible. Maybe carry a mini tape recorder with you, a camera - something that can record any evidence of abuse. Shit, if you have to, set up a hidden camera in the house that can cover a large enough area and pick up audio. Have it set to record whenever he's around. If he does anything stupid, file your police report and present your proof in court.

If you're clever enough, maybe you could get some "illegal" materials and have them planted at his house or in his car - don't forget about your fingerprints!!! Make an "anonymous" phone call to the police and let him try and explain his way out of it. Even something as small as a misdemeanor will fuck his world up, especially if he get's arrested.

For the record - I neither condone nor condemn the above mentioned idea - as far fetched as it may be nor do I condone cruelty to animals.

Bottom line is this - get the authorities involved. They can make life a living hell for this guy if they're in it enough...