Her thoughts came rapidly, and she refused to think twice.
At the far end of the library was a creature that made her think twice about entering.
He was the kind of man she wouldn't think twice about running from, though the intelligence gleaming in his soulful brown eyes gave him away as something more.
I'd guess he'll think twice now before intimidating Ms. Lydia Larkin!
She shouldn't have to be tough, and if he hadn't failed his people several sun-cycles before, he'd never think twice about training her for battle.