1. The sound of Katie tapping on my door in the morning. I pull the covers around me, and as she comes in, she says: 'Ohh, a bed bug,' before handing me a cup of tea.
2. Beans on toast.
3. Recognising a word in a Japanese film -- 'Kaimun' -- which we used in China to ask the chamber maids to let us into our hotel rooms. In Akira Kurosawa's Ran it is used by an general invading a castle to mean 'Open the gate!'