Sneeze

A sneeze can be a very intimidating gesture. Whilst sneezing, you literally shotgun spray out around 100,000 germs at around 160 kph. And although that alone already sounds dangerous, but you sometimes sneeze in twos or threes. So now you're just rapid firing a shotgun with a ridiculous amount of pellets.

And then you realize that those are all blind shots as you involuntarily close your eyes when you sneeze.

Sneezes can be triggered by common sunlight and holding a sneeze in might result in a backlash in the form of injuries. Some of the most common cases are ruptured ear drums, broken blood vessels in the eyes and weakened blood vessels in the brain.