My door was open just on the chance you'd go by.

In the morning we went down again on the chance of another shot.

I went up to the house on the chance of seeing her.

Even now, in the middle of the war, he had his eye on the main chance.

Everyone knows you as a man with his eye on the main chance.

So she had thought it over, on the off chance.

I'm also going to watch his apartment on the off chance he goes back.

It seemed as if everybody had his eye on the main chance.

But, on the chance that it might, he would be more than ready.

I tried the number anyway on the off chance he'd be there.