I'd like to pay this cheque in, please zithromax how to take As an economist, color me skeptical. This is an interesting way of looking at the question but it doesn't appear to answer the question. For one thing, the graphs are scaled in a way that makes the jump in calls at 9pm look bigger than the jump in crashes at 9pm (there is such a jump). If both graphs were scaled including zero on the y-axis, I think they'd look pretty similar around 9pm - though there is clearly more variation in the number of crashes than calls.