In the July school holidays I saw Harry Potter and the Deathly Hallows: Part 2 at the Cinema Gold in Havelock North. At the entrance to the theatre was a sign I'd not seen before. It read: "Flu Season: As a courtesy to other patrons in the cinema if you have a cold, sneezing or coughing please cover your mouth and perhaps sit one seat away if possible. Thank you."
Despite its carefully worded politeness, it really got the message across that sick people ought to try to keep their nasty germs to themselves.
Far too often we're out and about when we should be tucked up in bed and unable to pass on bugs to others. I spent fifteen years working in open-plan offices and would cringe every time someone turned up to work despite being visibly and audibly unwell.
It's not heroic; it's selfish and thoughtless. This simple act could make our entire department sick.
I became ultra paranoid about other people's germs when I had a baby. The last thing we wanted to do was bring bugs into the house when we had an (as yet) unvaccinated newborn at home. We were forever washing our hands and taking exaggerated detours around anyone who looked like they were under the weather.