<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How much itching powder should I put in someone's bed for a prank?
<|assistant|>
Depending on the strength you desire, you can put anywhere from 1 teaspoon to 1 tablespoon of itching powder in someone's bed for a prank. 
Be sure to warn any victims that may fall asleep in the bed first, though!