However hard they try to convince us this Olympics isn't going to be chaotic, countless incidents over the opening weekend suggest we're in for a dramatic few weeks.
The Telegraph are reporting that a stray bullet left a hole in the wall at the media hub of the Olympic Equestrian Centre, fortunately causing no injuries.
Journalists were left shaken nonetheless and this will do nothing to support Brazil's insistences that the Games have adequate security.
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It's not yet clear exactly where the bullet came from, although it could be from the military complex which is situated just next door.
The bullet was fired at around lunchtime when the centre was crowded and landed near the New Zealand press attache.
Mario Andrada of the Rio 2016 organising committee insisted: "It was a stray bullet and has nothing to do with the Games."
The committee are now investigating.
'The show must go in' seems to be the mantra of this Olympics, and that is certainly how the equestrians dealt with it, competing just an hour afterwards.
Is there enough security at the Olympics? Have your say in the comments.