most can relate.

Somehow someway sharepoint put my css and script link into a <p> tag and I've been spending 3 days wondering wtf is happening

@devTea one of my colleague forgot a semicolon and the project went late for a week.

Been a while since I’ve had it happen, but one of the worst feelings I can remember was flipping an == to != to see if it fixed a bug and everything started to work. Then double-checking the code leading to that point all over yet again, and finding that there is legitimately no reason why that should have worked...but it did and it does, so it’s time to move on...