In the final of the 800 meters at the Moscow Olympics in 1980 Ovett twice got use of his arms to get through the field in an irregular way, I think:
1) he push Andreas Busse of GDR out of balance 150 meters in the race
2) he use both his arms to get in between Andreas Busse and Nicholay Kirov of URS at about 350 meters in the race.
Did GDR or URS make a protest against GB and Ovett?
here are the footage from the race http://youtu.be/dqEhMWfMafU
the official olympic movies didn't show the pushes at all:http://www.youtube.com/watch?v=ry3508YPyew