I'm no fool, but I'll make a fool of you. I'm Dennis and I love to play practical jokes. My favourite one is the whoopy cushion closely followed by water balloons. Some of the little old men don't seem to trust me very much these days but hey, I'll find a way of getting them. Knock knock jokes are also great but it's the practical kind that really get me going. 'Parp!!' Ha ha ha ha ha...