I vividly remember the first time it happened. It was a New Year's morning. I drove through a fast food restaurant for a couple of breakfast sandwiches. The employee politely gave me my change. I was hungry, so I pulled over in to a parking space, put the money on the seat beside me and attacked the sandwiches.
Something was wrong. My money stunk! It apparently came from a bar or a heavy smoker. The stench was awful. When I got home, I threw the bills in the sink, along with a squirt of soap and freshened them up.
Fast forward to last week. I bought a tiny personal breakfast pizza and a newspaper at a mini mart. Once again, my change stunk. The bills went for a wash when I got home.
There really is no moral to the story, other than pointing out that I'm a finicky nudge who is extremely sensitive to the horrible stench of cigarette smoke. We've tried, unsuccessfully, to make counterfeit-proof bills. Odor-free currency should be the next step.