Of course it doesn't always to be physical, but sometimes verbal sparring can ignite a physical confrontation. I remember a college PJ party where two girls started getting catty, playfully at first, and then more and more nasty. The talk ebbed and flowed, with one then the other backing off a little bit. They finally reached the point where just talking wouldn't satisfy their mood, and they went at it. All of the rest of us (I asked afterwards

) were in different stages of arousal flowing the argument, and then being witness to the catfight. We pulled them apart after a minute or so, and the party broke up. When my roommate and I got back to our room, she gave me a challenging look which I returned, which led to a very rough play fight that boarded on a catfight. And we weren't the only ones either

.