A Mikoyan MiG-29 of the Belarusian Air Force recently had a major "Oops!" moment on takeoff. It looks to me as if the pilot was planning a 'hot-dog' maneuver (which I've seen before under more successful circumstances), where the aircraft attains flying speed, the pilot picks it up just a few inches off the runway, then he retracts the undercarriage, so that it looks as if there was no take-off climb at all. In this case, the plane just wasn't going fast enough . . . Watch the video in full-screen mode for best results.
I suppose it's possible the undercarriage malfunctioned, but at that point in the takeoff run, I'd say it's far more likely to have been pilot error. I suspect the pilot's future career prospects in the Belarusian Air Force have just entered a steep downward trajectory - but at least he's still alive to watch their decline!