Never frustrated? El, you must be some sorta cyber-Jedi. When it comes to programming, I get frustrated often, especially when your bug is some itty-bitty character in code that has been misplaced or mistyped, and you have to spend the next couple of hours trying to find it (which is why I'm not a programmer!).
Lol, it never makes me frustrated when I can't find a stupid bug in a program, I really enjoy programming, including searching for bugs whether they are stupid or not doesn't matter. I've spent more than a week looking for a bug once, then it turned out I forgot a '(' somewhere.