Last night, the spouse hit a kerb. Didn’t think anything of it. This afternoon, she went to drive to the museum, and discovered we had a flat tire. I tried re-inflating it to see how badly punctured it was. Once the pressure reached around 10psi there was an audible hissing noise, and the tire went flat in about 5 minutes. So, no going anywhere on that. Hence, I have just changed a tire on a car, for the first time in my life.