Is it because I’ve just had my first vaccination? It wasn’t AstraZeneca, but I swear our robot vacuum cleaner is alive. It’s a brand-name model. Great thing, especially if you have a dog and not many carpets. Works really well, it’s just a bit noisy. But it’s alive. I checked, the software is not from Microsoft – which eliminates the only alternative explanation. The dear thing drives around the whole flat and picks up dog hair, dog toys, dog food, dog biscuits and dog biscuits and nothing else really – except dog chews.