To hell & back experiences - Flashlights

To all Fenix users or Arc users,

What is the toughest environment, you have use your lights in?

Kindly indicate whether the light had :
a) just serve you in a reliable manner
b) serve you in a reliable manner, get you out of a sticky situation and
save your butt and ensure you return safely.

If you are going on a dangerous journey, would you trust your life with the light ?

Would be very interested to know if these light had been used in the sandbox.

Please share your experiences. Thank you very much.

PS: Above questions not for Pelican & Surefire users.