Stupid and arrogant beyond belief, you guys. Particulary Greg should have known better than to take non-cavers with no food, piddlyshit lights, and no redundancy on a 16-hour crawl.
I haven't looked at the rest of your website---it looks like you have a lot to prove. If you're serious about caving, get in touch with your local NSS chapter. Oh, before they'll let you join, you will need to go on a checkout, beginner-level cave crawl with an experienced member. But I suspect that your attitude will keeo you out.