What's the booze barrier?

Do you know what is a sensible amount to drink on a night out?

If you don't you're not alone. Most of us don't according to a new study.

That's why the Government are launching a "Know Your limits" initiative to try and teach us how many units of alcohol are in booze.

The trouble is the wine glasses that you are given in a pub are often double the size of one's you might have at home.