Even though I used to work in a laboratory before my switch to broadcasting, even though I am a rational person, I’m still superstitious sometimes.

It doesn’t cost much effort to knock on some wood or to walk round a ladder, so why not?

That’s why I don’t want to get too excited about the Covid vaccine that has been developed by Pfizer. Let’s not tempt fate.

There are plans to see it being used in December but it doesn’t mean we’ll be back to normal right away, which is fine by me. I don’t want to lose my excuse for avoiding the town centre shops this Christmas and just put money in cards.

What about side effects? Pfizer is famous for making Viagra but it was originally tested as a heart drug. The drug’s naughtier physical impact was an accidental side effect.

What if this vaccine has a similar side effect? It would cure the pandemic but we’d still not be able to leave the house.

There’s a discussion about who should get the vaccine first. Surely it’s people in care homes, key workers and the vulnerable.

All I know is the people who should get it last should be the people who have been posting anti-science memes.

When you go for the jab the doctors could check people’s Twitter and Facebook. If they have said it’s all Bill Gates’ fault or posted a picture of the Jackson 5 saying, “Don’t blame it on the sunshine, blame it on the 5G,” back of the queue for you.

As unscientific as it is, I’ll be keeping my fingers crossed that the vaccine works. Crossed but also washed for 20 seconds while singing Happy Birthday.