Last night, Bromptoming back from to hearing my daughter play in a concert to where I'd left the car far enough out of her university town to be free parking, I came up behind a bus, ready to pull out from the stop, but clearly unsure whether I was going to let it out or not. I was so mesmerised by the coincidence with this thread that I fannied around in the middle of the road, gave no indication to anyone of my intentions, slowed but not enough to be decisive, and resulted in me, the bus, and about three cars behind me all stuck stationary waiting for each other.