I would bet it is stress. Good heavens! How incompetent is that driver that a simple instruction such as to buckle the kid into the 5 point harness is skipped? Endangering a child because the harness is too much trouble? You are so civil! I hope the school fixes this one fast.
I love comments and I read every single comment that comes in (and I try to respond when the little ones aren't distracting me to the point that it's impossible!). Please show kindness to each other and our family in the comment box. After all, we're all real people on the other side of the screen!