There were a few 'move down the back' calls from various passengers, and a couple from the driver himself. She just didn't want to budge, and held her ground.

Admittedly, the dam did eventually burst, with a few resorting to stephen's aforementioned 'shouldering past' tactic, which had the unfortunate side-effect of seeing the poor person seated directly next the blocker wearing about a dozen blows to the head from various backpacks, suitcases and bags.