This is not "stupidity" - it's attempted homicide. How many times have we heard this story where the children were found dead, in twos or even threes, locked in the trunk of a car? These deaths come thick and fast during the summer - ONLY during the summer - and the kids parents and relatives are never really questioned about it - in spite of the fact it is really HARD to lock oneself up in the trunk of most cars. (Try it sometime and see - but only if you have someone to help you out just in case you succeed :P) But the immediate response of LE is almost always "oh, look, the children did it on their own"...
I don't buy it for a minute. Get those children out of there NOW.
The kids we read about are almost all belted into child seats. Those go in the back seat, not the trunk.
This is the first kids-in-a-trunk story I've ever read.