Well yelling and screaming aint gonna help, and 19 months is young to listen to something sensible. How about making up some kind of chart with stickers and stuff to get his mind off of freaking you guys out. Hours of the day, good things he has done?? Maybe to young but something with a carrot and a stick. He does get off seeing you freak out. Thank goodness I had girls. Other than Why 65 thousand times a day it was okay. If you have a house a sand box helps and I do mean this.