Not got Flash Player? Download it here to see some cool animation.

When drunk they might have unprotected sex

You wouldn’t want one of your mates to wake up regretting that they had unprotected sex after a night out.

Don’t let your mates get into trouble. Think about whether you and your mates should carry condoms with you.

A pint of ordinary lager has more alcohol than a single measure of spirit.

Your mates probably think that a shot will get them more drunk than a pint of lager. Actually, it’s the number of units that matter, and a pint of lager has more alcohol than a measure of sprits or a shot.

Count the units not the drinks.

Don’t let them be the odd ones out - only a minority of people your age will get drunk this week.

Your mates probably think that most people their age will get drunk this week.

Actually, only a minority will. Most people your age won’t get drunk this week.

Don’t let them get hurt – work out how you will get home before you go out drinking.

After a night out, you wouldn’t want one of your friends to walk home alone. You wouldn’t want them to get into a stranger’s car alone either.

Don’t let your mates get hurt. Before you go out drinking, work out how you are all going to get home safely.

Take a minute to find taxi numbers and put a few in your mobile phone. Find out more...

Have a look at catching a bus home, either a standard bus or a special night bus service.

Find out more about the standard bus service.

Find out more about the night bus service.

It’s not how many alcoholic drinks they’ve had, it’s how many alcohol units

You wouldn’t want your friends to get sick through drinking too much and have a bad time.

It’s not how many drinks your mates have, it’s the number of units that matter. Count the units not the drinks.

• A pint of ordinary (6%) cider is 3.4 units
• A pint of ordinary (3.5-4%) lager, beer or stout is 2.3 units
• A pint of premium strength (5%) lager is 3 units
• A bottle of ordinary (6%) cider is 2 units
• A bottle of ordinary (3.5-4%) lager, beer or stout is 1.3 units
• A bottle of premium strength (5%) lager is 2 units
• A bottle of ordinary (5%) alcopop is 1.4 units
• A small shot (25ml) is 1 unit
• A large shot (35ml) is 1.3 units
• A small spirit (25ml) is 1 unit
• A large spirit (35ml) is 1.4 units
• A glass of 11% wine (175ml) is 1.9 units
• A glass of 14% wine (175ml) is 2.5 units
• A large glass of 11% wine (250ml) is 2.8 units
• A large glass of 14% wine (250ml) is 3.5 units
• A bottle of 11% wine (750ml) is 8.3 units
• A bottle of 14% wine (750ml) is 10.5 units

So as you can see, in terms of units, drinking 3 pints of premium lager is about the same as drinking 4 pints of ordinary lager. Similarly, drinking 2 bottles of alcopop is about the same as 1 pint of premium strength lager or a large glass of 11% wine.