We had a motivational speaker once, when I worked for a multinational accountancy firm, who discussed a failed trip up Everest which cost him two toes. It was apparently supposed to be along the lines of 'if at first you don't succeed...', though I thought it far more illustrative of a failure to notice when something was clearly not going to work and save the situation by trying something else.
Then at another accountancy firm, they tried to organise us on a gokarting trip. A team of 9. One with a whiplash injury (me), one with arthritis, one pregnant. They told us it would be fun. We assured them it would not be. They told us we had to do it. We informed them that we did not, and if they tried to make us, we'd call in our doctors and our lawyers.