Dire consequences of...
Assorted nasty consequences of doing...
You'll go blind if you...
Keep away from...
You'll go mad if...
You won't grow if you...
You'll get appendicitis if you...
You'll get a stomach ache if you...
You'll get headaches if you...
You'll get polio if you...
You'll get worms if you...
Bad hair days...
It's poison...
Known terrors of doing...
You'll damage your feet if you...