Maria wakes me with a "Yo me voy" announced firmly through the door and I suddenly realise that having stuffed my 15 peso Metro-bought alarm clock (which now reads 3 o'clock instead of nearly 8) under my pillow after the wall magic wore off and the too-loud tick-tick-tick-tick-tick-ticking on my night table just had to be quieted if I was ever going to sleep wasn't the best idea.