Ennea Phobia may commonly be triggered due to being disappointed of achieving ${\textstyle {\ce {hipnr5}}}$ perfect scores or near-completions, like achieving 9/10 in the quiz often but rarely getting 10/10, while seeing a family member die less than a year before their new decade (e.g. dying at the age of 69). Another unuwpb it may be triggered is because of the meme-spreading number, 93.