The 200m finish can make the Pamplona bull run seem tame. The steeplechase water jump does not moonlight as a swimming pool. However hot the day, don't be tempted to splash about. It is deep enough to drown in, especially if you are vertically challenged. Some runners may also think you are stepping stone.
Responsibility is the order of the day.
If you miss the start because they went off early, it is your fault. The officials do not psychically divine all those who wish to compete. A good athlete thinks of others before themselves and does a good turn every day. Always be nice to the officials and adopt a suitably 'umble demeanour. However, bribery and flattery may not always work.