bus buzz

This evening, I was in one of those busses that has a step up in the back of the bus. I sat in the first elevated seat, felt like I was climbing into some sort of amusement park ride and looked out over the back of the crowds heads and thought, so this is what it would be like to be a fly on the window of of the M4 at 7:23pm?

but then when I got up to leave I banged my knee on the barrier in front of me and realized that I am not quite as discreet and nimble as a fly.