Google : "El Caganer". Really, just do it. Trust me -- you know you want to.
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El Caganer is the "pooper" and in Catalonia he is a rather strange figure who has been included in Nativity scenes for many years. No self-respecting Catalan Bethlehem scene would be complete without him! He comes in many shapes and forms, from monks to shepherds, Barcelona or Madrid football players, politcal characters (yes, both Bush and Obama have been memoralized), etc. - all performing the exact same action - taking a dump. That's right! They are actually squatting down, with their trousers round their knees, having a bowel movement!
Of course he is not situated near the Holy Family. The Nativity Scenes usually include the entire town of Bethlehem and el caganer is tucked away -- usually behind a bush or a building somewhere. The children are always excited to spot him going about his business.