Haha! I love that Extreme Ironing!
As I used to talk about constantly - I did Muay Thai and trail running for 2 years and was injured all the time, but I think it could have been avoided if I wasn't overtraining.
Here's my list:More Dangerous:
Boxing (only sports-related question on Canadian life insurance applications)
Free Diving (that's without scuba gear...
Downhill Skiing/SnowboardingMore Safe:
Swimming (low impact exercise, high supervision rate, easy access to help)
Walking/Hiking in populated areas
Weight lifting (technical, precise, calculated, controlled environment)