Re: sold a boat and it busted!
I don't understand why everyone is out to screw people nowadays. Like you said, AS-IS is just that... AS-IS.
The stupid kid signed the paper, blew it up because he was a newbie, and now expects to get his money back. W-T-F? Really what has this world come to? People need to own up for their own screw ups. Sir, I don't think you will have any problem in court as you have documents stating it as-is, and you even took time out of your day to run the boat with him. If there was a problem with it, I HIGHLY DOUBT a seller would be willing to show the buyer the ropes like you did.
I really hope nothing happens to you, in fact, countersue him for the pain in the *** he has been, and for your time / gas money to drive to HIS county.
Good luck with it all.