Idiom - "When in Rome" (Do as the Romans do)

"When in Rome" (do as the romans do) = Follow/copy the traditions and customs of the area you're in.

Examples: 

"You're drinking? It's only 8am?"
"Well this IS Ireland, everyone's an alcoholic! So, you know, when in Rome!"

We all saw this coming, but please be careful Facebook users of Britain.

http://www.dailydot.com/society/uk-crime-twitter-facebook-increase/
Original source

If you're in the UK - look up. There's a large ring around the Moon tonight. This is a fairly common phenomenon and you can read about what causes it here:

http://www.universetoday.com/20402/ring-around-the-moon/

How British are you?

An insight into being 'Apologetically British'

How many of these situations feel familiar to you?