Ah, delicious flavor countr... tube...s
Of SmOkE driFTing... well, drifting nowhere. the smoke is just hanging around like its not in a hurry to go anywhere. The air is getting a little stale. There is for some reason zero draft in this damn tube. This worries you, it means there might not be an exit at the top of the tube... or a locked or blocked one; who builds ladders to nowhere?