To use his own "butter knife / cheese knife / lightsabre" example, it's like if I want to butter some toast, I should choose the butter knife, right? Oh but now

To use his own "butter knife / cheese knife / lightsabre" example, it's like if I want to butter some toast, I should choose the butter knife, right? Oh but now I want to cut that melon and the butter knife is the only knife I have because I chose the least versatile/powerful knife because they told me to.