The last sentence of the chapter: ¿Me deja pasar, por favor? Tengo que ir al baño.
You have spilled flour all over yourself (me) and take away the blanket with a soft-furred cat on it (deja). The passenger next to you is thoroughly annoyed as you squeeze past (pasar), and you head out as if through a gate (por favor).
In the aisle you dance the tango like an elephant (tengo), and people turn their heads away thinking the man has lost it (que ir). On the toilet door hangs an eel, and inside it sounds as if a train were passing with people yodelling in it (al baño).