The bus, the bus, the bus is on fire.

On my way home from work, long day at the office, bus is packed, traffic is slow, nothing out of the ordinary here. HOLY SHIT THERE IS SMOKE ON THE BUS! Smoke is rising up from behind the seat two woman are sitting in. Someone open a window & someone tell the bus driver! But where is the smoke coming from? The woman  are joking that their seat isn't warm and there is nothing under the seat burning. Is  it seeping in from outside? Is it coming from the wheel, it is under them. Okay we are pulled over and the driver is outside having a look at things. One person just got off the bus oh and another just got off the bus. They probably figure we are about to be told to get off the bus anyway. Bus driver is done checking things out and is back on the bus. He hasn't said anything and he's continuing to drive. Hmm....interesting. There is still smoke rising up from behind their seat but it's not a concern? At least i am beside an emergency exit in case we have to bail! Second window just got opened. The smoke is on the move, it is now rising up from behind another seat! And a third window just got opened. Ok time to start reading the instructions for the emergency window. Oh crap, we are now on a bridge and about 100 feet above the water! Now where are we supposed to go! My head hurts, I can't tell if it's from a day of work or sitting in a smoke filled bus, or the thought of plunging to my death into the water. We're off the bridge and my stop is in sight! I guess the mystery of the smoke will remain a mystery.