Still, it would be better not to take an unnecessary chance.

He trusted Seven to a degree, but why take unnecessary chances?

But at the time he had seen no reason to take unnecessary chances.

The man never took an unnecessary chance in his life.

Probably not, but you don't get old in this business by taking unnecessary chances.

It was more important than ever to take no unnecessary chances.

But he could not take any unnecessary chances and let them live.

No, things were moving along too smoothly to take any unnecessary chances.

In a general sense, doctors are the least of my worries, but why should I take unnecessary chances?

Was he taking an unnecessary chance, led along by his wish to have this huge amount of money?