Caca

so, saturday morning when i went to get micah out of bed, i walked into his room....as he pointed at this "spot" on the floor and said   "look mama, caca"......yes, there on the floor in the dark was a little lump of caca.....I was horrified! where did that come from, i shouted....and my sweet, sweet boy patted his bottom, and said "in there"           ugh......WHY???