then pulls a screw driver out of his pocket, and adjusts one screw on one machine There is also a Russian version of this story, but it is about an expert sysa

then pulls a screw driver out of his pocket, and adjusts one screw on one machine There is also a Russian version of this story, but it is about an expert sysadmin who knew exactly which point on the server box had to be hit with a hammer to fix an issue.