Over 116 years, the Boston Marathon has had some crazy moments, including (of course) Rosie Ruiz, train interruptions and a runaway dog

Rosie Ruiz was perhaps the strangest occurrence ever to hit the Boston Marathon, but in 116 years, the race has had some strange, memorable moments. Heading into the 117th race, we take a look at the 10 craziest episodes of America's oldest marathon for ESPN's Endurance Sports section: http://espn.go.com/sports/endurance/story/_/id/9076078/boston-marathon-doug-williams-scans-race-116-years-ids-10-most-memorable-moments