Mom puts sippy cup full of water into her bag.
Mom puts bag over her shoulder.
Mom instructs boys to put away toys and crayons from the nursery floor.
Mom bends over to pick up crayons.
Very shortly, Mom feels water between her shoulder blades, dripping through her hair and onto the floor with the crayons right under her nose.
Mom quickly stands up straight again.
Mom may not be too bright, but she's got awfully quick reflexes!