That's terrible. And they'll probably use the "Oh, I just wanted to run in and grab two things, but I got sidetracked" excuse, and it's like "Hello?! Would you leave an ice cream cake in the back seat? What about a bag of diamonds? Because if you do that again, one of two things is going to happen: you're child will practically melt from the heat, or he will get stolen. *kicks*"
Right that doesn't make sense but whatever. I am angry at that. I hate it when people do that to their dogs, too. Especially in summer, when the poor doggies are stinking hot with their fur and all.