1.   It is necessary to use extreme caution with chemicals.

2.   Rangers have posted warnings at trail heads and campgrounds urging hikers to use caution when out in the wild.

3.   The back highlights the importance of using caution and suggests how to use the card.

4.   Use caution when you are working near live electrical wires.

5.   You should use caution when operating the electric saw.

6.   America must use caution in engaging North Korea.

7.   And, unless you are a rodent, use caution in applying results that are obtained with laboratory animals to your own situation.

8.   Because miners must use extreme caution to protect the fragile formations that make the cave so spellbinding, tunneling is slow going anyway, Travous said.

9.   A general travel advisory to Americans to use caution and review their security practices was also updated from November to mention the new military strikes.

10.   Britain, Germany, Belgium and Italy have told their citizens to use extreme caution and avoid troubled areas.