Aside from our journey home taking four hours longer than expected, we had an amusing if disconcerting experience once we set off again.

According to our dumb electronic navigator, as we left Peterborough, the closer we got to home the longer it would take us to get there - the estimated journey time somehow kept increasing the further we travelled.

Fortunately, when we got to the Black Cat roundabout, we happened to notice that staying on the A1 would save us 46 minutes. A no brainer. But our stupid satnav said nothing and would gladly have continued sending us up the junction to the A421 and down the M1 on its preferred but needlessly extended drive.

We’re up to our eyeballs in AI, but unsupervised, my toaster is a wannabe arsonist and my satnav can’t tell me the quickest way home.