User : The PC cannot turn on! We moved it to a new table and now it just won't turn on. Me : Did you plug in the power cable and turn on the main power? User : Of course lah... You think I stupid meh? After 15 minutes of troubleshooting on the phone (which involved asking her to check the fuse, the main power point (and to swap it) as well as the cable at the back of the box)... Me : I'll come over and check it out. 1.5 hours through hellish traffic from PJ to Sunway, I arrived at their office, popped my head behind the PC to discover that she didn't plug in the power cable. All she could say was "I thought I did...". I was in and out of the office in less than 10 minutes... and it took me another 1.5 hours to get back.