how is it that small children can suck all of the energy out of you? after having spent my entire day with a four-year-old, i am utterly exhausted. granted, i was up at 4:00am in order to begin this day... but i still feel unreasonably wiped out. and its not as though i exerted myself in any unusual way. we played some games, i read a book, we ran some errands, and that's essentially it. so why is it that i feel like i've run a marathon while simultaneously cramming for the mother of all final exams? i'm convinced that children have some kind of parasitic, energy-syphening ability... it's really the only way to explain why i'm ready to collapse and she's just started her 6 billionth lap around the living room.