Answer:
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
What does a WW1 Trench, A Submarine and a Popular Phone App all have in common?
If you break me, I do not stop working. If you touch me, I may be snared. If you lose me, nothing will matter.
What binds two people yet touches only one?
People take me on walks and I run and have fun. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?