smell trouble
smell danger

Following his nose, which could smell safety and danger, they found a way through the Indian lines, and entered the city under cover of night.

When they smell danger, they raise sail and run before the wind.

He could smell danger in the dark; he could read the surface of the water as an open page.

Buster looked out the study window with the narrowed eyes of a ferret which smells danger on the wind.

I could smell danger to the grove.

He could smell danger like an animal With his left hand he pushed the closet door open and glanced inside.

"Do you still smell danger behind every tree, Lord Damon?"

You can smell danger in the air, the scent of quests waiting to be fulfilled.

Fish face losing their ability to smell danger as the oceans grow more acidic, new research has revealed.