People like you only think of yourself and not of others. Say the police and hazmat crews let parents pick up their kids that day. Lets use the example in the story, where the parent was taking her kid hunting. After the kid is gone, the crews find out that the "fumes" were harmful and the students that inhaled the "fumes" need to seek medical help. So here is a parent and their kid out hunting, the police and hazmat crews dont have the responsiblity to track down all the kids they let go down, and this kid get seriously ill, or dies from the fumes they inhaled. Think about the situation, and how everything went well. Don't just think about your pompous rear and how you were inconvenienced for not being to pick up your kid early.