In Spanish

Note how the themes of motherhood and trickery... "ser vivo" or maybe even the "picaresco" are woven into this video.  I showed it to one Latin American who knew what was going to happen.  It would be interesting to do a poll based on origin (country), age, and other categories to find out how people respond.  Was this predictable?  Have you seen it before in some other format (joke, urban legend or "true story"?)