The need for such a device depends where you drink. And life skills.

Ever bought any illicit drugs? Taken or done anything that could enhance your life? Own a gun? Thought about using it for a split-second?

Do you see yourself a potential Darwin Award winner? Are you in training?

Everything is a risk-reward balancing act. If your day-to-day analysis of that continuous series of balances is repeatedly flawed then best not go. Best not step out of your house. Or room. Or Bed. Depending.

Vietnam is lovely. Went a few years ago as part of a group thing. And I checked today: I am still alive. I prefer the north to the south: people with nothing will share and engage with you, the south provides you with all the opportunities to buy stuff from curbside ventures you could ever wish for (read between the lines).

They will bombard you with details of the 'American war' which as a British bloke was rather sad. Maybe some of you know that history.