Whenever I've seen those documentaries where the crocs massacre the wildebeasts (zebras, gazelles, etc.) crossing the river, I think what a great idea for an extreme sport... Instead of running with the bulls, all of those danger seekers should try swimming with the crocs. Probably would be quite a rush, at least for a few seconds.
Also like the monkey with the flies shot..... reminds me of fond memories of gnats swarming around my head.