1.   Cube Boxfish can release a poisonous substance if badly-handled or attacked.

2.   If there is evidence or suspicion of drugs or poisonous substances having been taken.

3.   Poisonous substances, such as garden chemicals, should be clearly labelled.

4.   Botulism toxin from bacteria prevents the release of acetylcholine and is the most poisonous substance known.

5.   Although he makes his sons wear bicycle helmets and keeps poisonous substances out of reach, there are no socket covers, stairguards or safety latches in his home.

6.   And not unlike what you might experience in the circle of your own family, comet outgassing comprises highly poisonous substances.

7.   And the chemical treaty bars substances so poisonous even the chemical industry agrees they should be banned.

8.   Cholla needles have small barbs at the end, not to mention a poisonous substance.

9.   If your dog ingests or inhales a poisonous substance or absorbs poison through the skin, prevent further exposure to the poison and avoid poisoning yourself.