A lot can happen in four seconds. Okay, that's not strictly true - some things can happen in four seconds, such as, say, kicking yourself in the face like this overeager cheerleader.
Admittedly, it's not a direct hit to the noggin by her inquisitive foot - it's more of a seriously unfortunate, high velocity slip-up - but there's something so joyfully silly about it that we couldn't not share it with you.
Elsewhere in the world of fail, far more serious snafus have been occurring all over the globe. Fortunately for us, some lovely blunder-addicted YouTube lovers have collated the past six months of fail into these video compendiums we've got for you below.
So if you fancy seeing more people going arse over tit - metaphorically speaking, anyway - check clicking and get wincing.