PB was teaching me how to use the Internet effectively when a message box popped up on the screen to announce that my sister was online.

‘But it’s only 08:30am!’ I protested. ‘Why is she awake so early?’

When I went through to the bedroom to ask her face-to-face she explained that she was practising for Christmas Day. She needed to be sure that she would be up and dressed in time to open her presents.

I almost asked her about the massive tattoo that stretched across her torso, but thought better of it.