A couple of pilots were playing on their laptops during a flight and missed their destination by 150 miles. According to their employer, "Using laptops or engaging in activity unrelated to the pilots' command of the aircraft during flight is strictly against the airline's flight deck policies and violations of that policy will result in termination".
The airline gave every passenger a $500 voucher as an apology.
While what the pilots did was definetly a /facepalm, I kind of feel bad for them. What if they were playing a flight simulator on their laptops or something? I do agree with Engadget that it's a good thing they didn't have WiFi on the plane or who knows how far off course the plane would have gone while the pilots played World of Warcraft.