The Thrill of Victory, the Agony of Defeat... I'm happy to see emotion in sport. As long as they're not yelling at their fellow competitors, I think it's great. So Bolt has some swagger--good for him! He won two gold medals, and set world records in both races. He's made the Olympics much more interesting.
And if someone wants to express frustration, that's OK with me too, as long as no one gets hurt, and it doesn't interfere with the event.
I have little interest in watching robots who are always trying to act appropriately.
Dave
P.S. How many bike racers celebrate their wins before the finish line?
