If they were smart the would have done the same exact thing the Regional pilots did, stay out of the way. It was on the ground and the door was open, the Gate agent still controls the passengers at that point. The gate agent and the Chicago police was dealing with a passenger who became disruptive and rushed back onto the plane after being escorted off (I bet you forgot that part). You see, the good Doctor needed to get back to his practice so he wouldn't miss out on illegally prescribing more opiates for profit (did you forget that part too?). That was when he was restrained, for reentering the aircraft illegally. What would a big shot Captain such as yourself have done in that situation? Get in between the passenger and the CPD?

ohh yeah, you can also blame Mainline United for overselling flights so much creating these types of situations daily.