I have a friend in Las Vegas whose daughter convinced him to go on the Stratosphere X-Scream ( http://tinyurl.com/yonarl ). I asked him what it was like and he replied “I wanted to die”.
He says he now carries a broken rusted bolt in his pocket and whenever he finds himself in a similar circumstance, he quietly drops it on the ground and then “notices” it loudly and with great fanfare. :-)
So he is so weak he can’t say “NO”, but he can ruin the fun for everyone else? Nice guy!