Faster than a parent can dash to the next room to answer the phone, run to the kitchen to remove burning food from the stove, or hurry to open the front door, a toddler can get into serious trouble. After an accident, the common parental refrain is, “But I only turned my back for a moment.” Parents never dream their child would eat Grandpa's medication lying on the table, or that their toddler, in the midst of having a bath, would turn on the hot water.