That's a pretty volatile combination if ever I've seen one.

Many investors who are less than 15 years from retirement may not be comfortable with such a potentially volatile combination.

Alcohol, drugs and bored young people are a volatile combination.

He said that for some athletes, the mixture of a troubled background with sudden wealth is a volatile combination.

But it's a pretty volatile combination, don't you think?

"Race and taxes make a volatile combination," he said.

As we saw in August bored, young and poor is a volatile combination especially if they can't find a job to occupy them.

They use the ancient rhythms in volatile new combinations.

Indeed, the festival seemed to have pulled together most of the right people but failed to produce volatile combinations.

This volatile combination could not be sustained through time.