I once spent two hours on figuring out why a log file wasn't being modified when there was an error. I knew the location of the file but it just wasn't showing

I once spent two hours on figuring out why a log file wasn't being modified when there was an error. I knew the location of the file but it just wasn't showing that error. Eventually I tracked down this line: // writes to the log file at c:\...\xyz.log AppendToLog(message); Yeah, that was the correct path and everything, and yet the line wasn't executing! Eventually I looked inside the AppendToLog method. It was writing to another file in a completely different path :) That was when I stopped bothering to read comments. They always lie, and I couldn't even blame the programmer who changed the AppendToLog method -- the comment wasn't inside the method, it was on a call. I can't honestly expect someone who changes a method to look for all the places where that method is called and make sure any existing comments match the change.