Me: I spent an entire week going over every line of code by hand. The problem is in the database.
Coworker: No, it can’t be, there’s nothing in there that can do that. You just need to buckle down and find it in the code. We’re wasting a lot of time here!
Me, 1 week angrier: I spent an entire week going over your database procedures by hand. Here’s the procedure causing the problem, with your comment explaining why you were making the bad call.
Coworker: Oh hey, yeah, huh, look at that. Well, it’s late on Friday, I’ll get to it next week. Have a good weekend!
Me: Not if you open the package I plan to overnight to you…