This is what our 2 yr old does at night. He picks the lock to his sister's room and takes her stuff. The mother Joann Moser was faced with this parenting puzzle: Would you rather your 2-year-old wake up in the middle of the night screaming for his sister's Pillow Pet (and water! and needing to go potty! etc.!) or would you prefer to be raising an expert lock-picker?