Final answer:
It is false that keeping hands in your pocket while walking in the rain maintains balance; it's safer to have them free. Working with high-power circuits one-handed or with one hand in a pocket prevents dangerous current paths across the heart.
Step-by-step explanation:
The statement that you should keep your hands in your pocket to keep them dry and maintain your balance when walking in the rain is false. When walking in the rain, it is important to have your hands free to maintain balance and be able to react quickly to any slipping or tripping hazards caused by wet conditions.
For a counterexample to the conditional statement "If you walk in the rain, your shirt will get wet," an individual could use a waterproof jacket or umbrella, allowing them to walk in the rain without getting their shirt wet.
Regarding electric circuits, the recommendation to work "one-handed" or "keep one hand in your pocket" is a sensible suggestion since it reduces the risk of creating a current path across the heart, which could be lethal in the case of an electrical accident.