Only in Jefferson County

As I rolled up the hill into Gravois Bluffs (techically St. Louis County, I believe) to do my grocery shopping, I noticed a couple on the side of the road, on foot, headed out of the shopping center. Both early to mid-twenties, hoosiers. She with a baby stroller, and he heavily puffing a cigarette. Then I noticed his t-shirt. It read, "Got Oxygen?"