The "How are you Alive" meme green screen is a classic for a reason. It captures that perfect moment of utter confusion and disbelief, usually when someone survives something they absolutely shouldn't have. The blank green background makes it incredibly easy to drop into any video editing software.
You can use this template for everything from ridiculous gaming fails to real-life near-misses in the kitchen. Just place your own chaotic clip behind the green, and the question writes itself. It's the perfect reaction for when logic just doesn't apply to the situation you're witnessing.