Since these things can go on for weeks before the baby actually arrives, this doesn't mean he'll be here any time soon.
Today, however, I had a quite painful contraction while waiting in line to check out at Target. The clerk was a young man, probably late teens or early 20's. As I paused in the middle of swiping my credit card to hiss and lean on the counter, his eyes got reaaaaally big. He asked if I was ok - oh, I'm fine, just a contraction, no big deal - and suddenly, he could not ring me up fast enough! He even offered to call an ambulance. It was pretty amusing.