I passed this on to a colleague whose jokes are both constant and terrible (though far from the condition described). As I said to him, I'd be worried about my

I passed this on to a colleague whose jokes are both constant and terrible (though far from the condition described). As I said to him, I'd be worried about myself ... but thankfully my jokes are always funny. It's an interesting insight into what sparks 'humour', and how much of it is physical rather than intellectual.