ON THE STRAIGHT AND NARROW

Rigid behavior


e.g.

You are supposed to keep me on the straight and narrow while we are away. Everyone trusts you.

or

An insider told The Mirror that: 'Their [his team] main priority 

is looking after Spencer and making sure he is on the 

straight and narrow.'

1. http://evoke.ie/showbiz/spencer-matthews-makes-drastic-decision-after-shock-exit-from-im-a-celeb

BAREFACED LIE

An outright shameless falsehood, told with confidence.

e.g.

The car salesman assured me that the pre-owned red mustang had never been through an accident, never been dented and it is as fuel efficient as a Smart car. What a barefaced lie!

or

He told me a barefaced lie that the farmer could not 

raise the cash from the bank because our company 

wasn't NHBC registered.

http://webcache.googleusercontent.com/search?q=cache:2BgvIr19yfsJ:www.gallowaygazette.co.uk/news/local-headlines/in-laws-took-all-we-had-1-336144+&cd=6&hl=pt-BR&ct=clnk&gl=br