It's not considered fleeing if you are in a furball that broke off from the main pack and got seperated as long as you are fighting. I think that the only thing you have to worry about is not hitting cruise. You can Thruster e-kill just about as fast anyway to get back into it. There is a lot of common sense that goes into it. The admins are not going to hit you for something stupid and petty if they can avoid it.