A. I am afraid of heights
B. If I get a workout in the gym, I consider that a major accomplishment
These are from the website videolous, and what you are about to see is amazing. One was not enough for me, so I included two of them (click on the images). Each takes about ten minutes and both will get your heart pumping.
(If you only have time to watch one of these, watch the one with the motorcyle.)
Don’t do any of this stuff at home – or anywhere else, for that matter!