Almost forgot to add the insanely cute way Simon throws temper tantrums, which is to say loudly "Aaaaaa!", and ball his little fists up and shake. Then he collapses to the floor and puts his head on the ground, utterly bereft at having lost the cord or choking hazard he had been happily playing with. Then he puts his head down and says "Mmmm. Mmmmmm." until he realizes he is looking at you sideways, at which point he starts to giggle.