it happens so fast and so quickly. I remember when my ( now adhd) diagnosed toddler just 'disappeared' when I turned my back, bent down and looked for his water bottle in the stroller. We were in Kensington gardens, in the huge playground, I felt sick - panicking, calling his name - no one helped !!! I thought I would have to call the police and his father and explain how I had lost him - it was horrendous. 3 -4 min later I found him playing in a sandpit. 25 years later, it still haunts me. It can, and does, happen to the best of us. - don't judge until all the facts are in.