The pair - guitarist Malakian and drummer Dolmayan - only have the number of stitches they ended up with as proof of who won the brawl.
Malakian says, "It wasn't a matter of punching, we used weapons. When we were writing Toxicity, something happened that had nothing to do with the music. It was just something he said and I was in a bad mood and I swung my guitar at him aiming for his head. I missed and his elbow hit my face and cut my mouth open.
"I realised I was bleeding so I grabbed the microphone stand from the bottom metal end and just whacked it on his head, so he has about 18 stitches on his head and I have about 15 on my mouth."