Relier Pairs Idioms with safetyVersion en ligne Life 6- unit 2B par Mariangel Fernández 1 BECOME SECOND NATURE TO YOU 2 ERR ON THE SIDE OF CAUTION 3 DO THINGS BY THE BOOK 4 CUT CORNERS 5 BETTER TO BE SAFE THAN SORRY 6 FOLLOW THE CORRECT PROCEDURE To do things in the correct way. To become natural. To do things in a very safe way. To improvise, to do sth without care so as to save time or money. To do things in a safe way to avoid risk. Don't try to make up your own rules.