This is a video from the 2014 World Bowling Men's Championship in Abu Dhabi in which Team USA's Bill O'Neill thinks he bowls a strike, but one of the pens flips and bounces itself back upright. Bill then had to bowl for a spare, which he got. Later, I assume he was kicked off the team for being the unluckiest person in the world.
Keep going for a video of the Big Lebowski's worst nightmare in action.
Thanks to Steven M, who still rolls the ball between his legs because that's what works for him.