I’ve re-entered a head-banging phase. Not the music-related-throwing-your-hair-about type but the fist-to-head variety. This has happened intermittently before but has become pretty regular over the last couple of days. The head banging doesn’t stop if my hand contains an object. Already today I’ve hit my forehead with: a phone, a carton of apple juice, a set of keys, a toilet roll dispenser and a strawberry.

Earlier, when I was sitting next to Fat Sister I hit my head and then immediately hit hers. “That was my head,” she complained. “Yes,” I said, “Tourettes doesn’t care whose head it is. With Tourettes no heads are safe.”