Agoraphobia – fear of being in situations where escape might be difficult
Agoraphobia is a type of anxiety disorder that puts the sufferer at a constant state of risk. This Redditor has always felt convinced that his doors are always unlocked and would double-check to confirm his claims. His trigger was when he took his dog for a walk and failed to lock the doors, causing him to feel unsafe, even though it was just a minor mistake.
People who have agoraphobia often feel the need to stay indoors with their doors and windows closed as they believe anywhere away from their comfort zone can cause danger to them. They avoid driving a car as they fear getting into accidents, shopping in a mall as they can be a risk, traveling on a plane as it might crash, or even simply being in a crowded place.