I asked him why he does this. His explanation was really built on this operant conditioning idea: "we use this stuff for 8 hours a day and we train ourselves to avoid all of its little pitfalls. So I get the most available person who hasn't used it all day, which is our manager. He uses it differently than we do because he doesn't avoid all of its little problems. But if we have a really tricky problem, I get our manager's manager. I don't know if you've ever seen him try to use an xbox controller, but he has the spatial reasoning abilities of a goldfish. He's never failed to reproduce a really hard bug. If I ever needed an Einstein-level bug reproduction, I'd track down the head of the department and put him in front of it, but it's never come to that.