Lilly's Theory of Chair Stealing

David often finds that when he goes into the kitchen for a snack or to take a bathroom break from watching t.v., he comes back to find his favorite chair occupied (by sweetness, cuteness, loveableness, etc.). David seems quite bothered by this at first (I think it interferes with t.v. time or something), but doesn't stay mad very long. WHO COULD? Lilly's theory is simply "ON YA FEET, LOSE YA SEAT"...no harm intended. Eventually, if gone long enough, David often returns to "SLEEPING BEAUTY".