Confidence is a wonderful trait to have. However, too much of it can make one’s head swell. While this might sound similar to a verse from a didactic children’s book, it’s true. Overconfidence causes people to overestimate their abilities and knowledge, which are often far from reality. And we know there are few things that netizens like to do more than ridicule these instances online.

So we gathered a whole list of them, courtesy of Confidently Incorrect subreddit. Scroll down to find the most hilarious times cocky people got things totally wrong, and be sure to upvote the ones that deservingly got torn apart by the overconfidence police.

While you're at it, don't forget to check out a conversation with visibility and confidence coach and founder of ubu skills, Megan Hamilton, who kindly agreed to tell us all about confidence and its excess.