The number of children who've died in hot vehicles this year has surged. So far 28 children have died after being left in hot cars, twice as many in 2015.
Even if children survive they can be left with severe and lasting brain damage.
It was a small change in the Stuyvesant family's morning commute that lead to the mental error most parents assume they could never make.
Eric Stuyvesant forgot to drop off his 3-year-old son, Michael, at daycare, instead accidentally leaving him in the car for more than an hour.
"I just made probably the most tragic mistake of my life in leaving him in the car," Stuyvesant says.
Michael suffered six strokes and has spent the past year learning how to eat and walk again.
It's unclear why cases have spiked in 2016. Hot weather isn't always to blame.
"We had an incident in Georgia in January where the high that day was only 52 degrees," notes Sue Auriemma of KidsAndCars.org.