Someone who wanders around the house waving their arms around in strange patterns whilst imagining various scenarios or techniques. Someone who practices forms while the kettle boils. Someone who’s wife refuses to go to a cash machine with them because they won’t allow the person behind them stand closer than a metre.
I've seen long lists of things like this...'how do you know you are a martial artist'
Things like switching off lights with your foot, sitting in a waiting room looking at people in turn working out how to take them down if they attacked....... any more, people?