((hugs)) i know that oxy does make my brother violent. when he's high he's fine, but the withdrawls that he gets make him very, very violent. he's broken things, gotten into fistfights with my other brother, etc. it is certainly a drug that takes control and demands greater amounts. my brother started out with about 80 mg a day that he was prescribed, and when he went into rehab the first time he was snorting 360 mg 3 or more times a day. i don't know how you can tell how much he's using, but please trust your gut instincts and take care of yourself.