Question:
Goal: Remove itch from sore throat.

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Eat a piece of cucumber.

Question:
Goal: how to shoot a gun

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
put a new magazine in the chamber, turn the safety off, aim at your target and squeeze the trigger

Question:
Goal: To save on buying water,

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
use a rain catcher such as a barrel and route the roof gutters to it, then purify the collected water.