Clearing the air on tobacco investments

I'M too cheap to pay for a gym membership, so I often work out in public parks. One of my favourite spots is a large lawn right by my office building; in the evenings, it's filled with burly rugby players, gravity-defying yoga enthusiasts, and frolicking kids waiting for their parents to finish work.

It's quite an idyllic scene - if you gloss over the smokers. Which, for the record, is hard to do, when you're gasping for air over your 100th jump squat.

Let me be clear: I'm in no way saying smokers have no right to puff as they wish - it's a public park, and they have as much claim to the space as anyone.