<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What's the most effective improvised weapon?
<|assistant|>
Balled-up fists have long been considered one of the most effective improvised weapons, as they are effective for both punching and hand-to-hand defense. Masking tape-wrapped brass knuckles can increase the damage of a fist-fight, as can adding weights to the knuckles. Other improvised weapons such as belt-loops or car-keys have also been used effectively.