Imagine you’re on your way home from a particularly annoying day at work. Your boss has been putting you through the grinder for no apparent reason and every time you’ve tried to get something done it’s blown up in your face.

Thankfully, the warm sanctuary of home (and online poker) is just a couple of minutes away. But then suddenly a couple of particularly odious ASBO-holders are in your path snarling, ‘What you looking at?’ The safe response, of course, is to say nothing and briskly walk past, retaining both your dignity and your limbs. But suddenly your bile is rising and, without thinking, you’ve already come up with one or two choice phrases to hurl back at the pair of miscreants.

This is the moment where you have to think most logically.