On two separate occasions, I failed to climb a double length caving ladder during pre-deployment training Once while hiking a jungle mountain with a foreign partner force Both my legs cramped due to my inadequate fitness and my knees were completely locked out. To say this was the most humiliating moment of my life would be an understatement. So good on you for admitting it in your book. You're not the first Seal who has had their m60 or their mark 48 taken away from them Or care, you know, given up their radio or their rock or their med pack That stuff happens man like guys go down from heat or whatever And so you weren't the firstYou won't be the last