Even when people are rich and successful on TV shows, there's always some trouble - you have to poke holes in them, throw them out of a job, put a pie in the face.
Time always seems long to the child who is waiting - for Christmas, for next summer, for becoming a grownup: long also when he surrenders his whole soul to each moment of a happy day.
A joke is not a thing but a process, a trick you play on the listener's mind. You start him off toward a plausible goal, and then by a sudden twist you land him nowhere at all or just where he didn't expect to go.

