When you're faced with two choices and you have to decide right now, the correct answer is… either of them. It is better to do either than neither.

I was at the Library of Birmingham all day today doing writing sessions with schoolkids. But my slot was 45 minutes and with about half an hour to go, I was paralysed over a decision.

It was because I have a writing exercise I love. If I'm working with adults, it spins off into all sorts about radio drama and if I'm with children, it becomes a Doctor Who writing session. I'm not always happy about the jump to Doctor Who, it isn't as obvious and necessary a step as the radio writing one seems. So, faced with a shorter running time, I held my head in my hands trying to decide whether to skip it and go straight to Who or not.

I've been thinking about this for around ten days. But at 10:25 this morning, I was alone in a room with my notes in my iPad, trying to juggle times and even – I'm only completely ashamed – using an online random choice generator to try to decide. Start with the usual exercise or go straight to Doctor Who.

Truly, this is not a hard decision.

But I could not make it.

And then the first group came in half an hour early and I had to decide in the space of time it took to stand up.

I did the intro exercise. I love it. I'd tell you every detail but I hope to try it out on you some time.

The thing is, none of the kids or their teachers would've known if I had gone straight to Doctor Who. Nobody would've known any difference, except I'm adamant that they'd have lost out by not doing this introduction bit.

So I did do it but I could have as easily chosen not to. And neither would've been wrong, so either would be correct.

The only thing that would have been wrong is standing there for another half hour throwing a coin in the air.