Pretty much every day at work. That or this insanity:
My worst moment was definetly in college where I spent 4+ hours trying to debug my code, only to find a 1 stray comma which caused everything to break. Normally, you would think it would be easy to find a syntax error in code using a debugger; and I would agree. HOWEVER, I would bet you have never had to remotely login to your schools linux machine, use a text editor (EMACS) with a GUI that actually is only there for show, and debug with only the built-in debugger that hasn't changed since the 90's. sigh I should've been a history major...
