When you put it in correctly over and over but the bot checking it can’t realize it’s correct ironically. Also CAPTCHAs are getting worst in frequency and complexity. It’s not complex because it’s advance, it’s complex because they blur, distort, and skew the holy life out of the text or image so you can barely even tell what it is anymore.

CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart but they use bots to see if you are/aren’t a bot. Infuriating.