Now imagine if everyone in the bus had carried a handgun like gun nuts want. The girl would have pulled hers and tried to shoot the driver, as enraged as she was. Maybe she would have missed or maybe the driver would have been quicker and short her in retaliation. Perhaps one of the passengers would have joined in. Instead of a bruised ego and a little nosebleed, we'd have at least one corpse, possible more.
"Oh but Jhess, if people all packed heat, society would be much more polite, the argument wouldn't have started in the first place!" Yeah right, did it look like anyone was stopping to calm down and think things through logically? No way.