I haven't said that it is a rule. Are you suggesting that there is no such onus on a driver? F1 isn't a demolition derby. There is enough precedence where drivers are penalised for causing an avoidable collision. It's only "murky" to those who want to apportion blame in a different manner than the stewards. How the hell can "crowding" be inadvertent? The word means to intentionally pressure another driver off the chosen line. "Crowding" without intent is called a slide or a skid. In other words, a loss of control of the car's direction (for whatever reason). The fact that Maldonado failed to account for the lack of grip Hamilton had is down to either his exuberance or his lack of experience (possibly both) but that's not the point. The point is that he rejoined unsafely, that he didn't have to spear into the McLaren is shown by the second lap incident at the same location when Raikkonen tried a similar pass but rejoined safely in a manner that Maldonado later claimed wasn't possible.