Sometimes, you should just keep your mouth shut, or In this case, your keyboard closed. I know that, but sometimes I can't help it. I just went through the security line at the airport in Portland. I don't use blood pressure medicine, but by the time I reached the end of the line I'm pretty sure I needed it.
I'm very patient with kids, in fact I love them very much. Grown ups, on the other hand, sometimes make me crazy! About ten people ahead of me