I'd just like to thank everyone who replied on this thread, because I'm going to print it out and paste it up on our kitchen wall. My DH will eat *anything* - if it's turned green and is trying to crawl away from him, he'll beat it with a mallet before throwing it in a frying pan. And he's convinced tinned foods stay fresh, or at the very least edible, FOREVER.
More than once since I've known him I've spent an evening conversing on the Great White Telephone, because I turned my back long enough for him to try and "help" with dinner. Now he's not allowed in the kitchen when I'm cooking.