Dragonmilk X

The aroma of urine is ever-present, with weather and possibly the diet of the producers affecting the exact scent.

The transfer from B to D is not at all well arranged, as you will have to go up and downstairs to continue going the same direction, so to speak, leading to either just missing a train and a long wait, or everyone rushing to the same train.

If you're extra (un)lucky, you'll also catch notes of fecal matter in the air.