Very few people are ever pushed to their limits to see just where these limits are. Those that are ie: Navy Seals, have people there to save them when they pass out underwater etc. If those people fail they are court martialed, punished, demoted and even jailed. A "survival" school can legitimatly develop a person's mind and survival mindset by pushing limits but to me it's primary goal should be training how to totally avoid those limits. This outfit seems to have evolved into a New Age self help cult designed to instill self esteem/ self awareness etc. rather than skills. Testing your limits should come at the end of a course when all you have learned can be put to good use reinforcing one's confidence and survival perpective. Allowing your client to die from lack of water just means you need to take a true survival course so that you don't go on negligently killing people