<human>: What is the best way to: How to remove the needles from a cactus paddle?

OPTIONS:
- use a knife and slide the knife across the surface of the cactus to lift and remove the needles
- use a knife and slide the knife through the center of the cactus to lift and remove the needles
<bot>: use a knife and slide the knife across the surface of the cactus to lift and remove the needles