Here it is, my big brainstorm of the day: A personal biosecurity assistant!

It would require a range of skills, from those of a public health nurse to a professional cleaner -- and even some muscle, when necessary.

The cleaning would take place before you took a subway seat or grabbed a subway pole, as two examples of grubby everyday tasks that could unwittingly bring death visiting you.

Frankly, I could see a role for the advance cleaning of public toilet seats too (actually, I know some people who would pay to have washroom doors opened for them), or the sterilization of restaurant cutlery.

The nursing skills would be needed to assess the threat risk of individuals in public spaces, maybe scanning people to see if they have a fever or some other sign of illness.

And finally, the muscle might be necessary to physically repel those who could bring potential illness-bearing germs into your own private space.

Frankly, I think everyone would appreciate it if the hacking coughers and serial noseblowers were heaved off their public transit vehicle. Even if the vehicle were moving. Heck, maybe especially if the vehicle were moving.

I'm telling you, folks: This could be the career of the 21st Century!