Boomz

On the train (again, its always the train) this morning, i kept hearing a persistent banging sound that seemed to come from above. Just that it didnt really seem to be above; I couldnt seem to pinpoint the source. So i kept looking around but still couldnt find where it was coming from. Strangely, i seemed to be the only one to hear the sound, because the other commuters seemed rather unaffected by it.

It sounded like something backfiring, could it be the airconditioner? i didnt think so, it should be centralised cooling. Then a bomb [insert gasp]? I was deciding whether to alight and tell a station staff abt it (and risk looking like a fool) when the lady beside me sat down and i realised that the sound was just from her mahjong game........