'And he directed his play to show the fun of unhappiness'

NELL (without lowering her voice): Nothing is funnier than unhappiness, I grant you that. But--
NAGG (shocked): Oh!
NELL: Yes, yes, it's the most comical thing in the world. And we laugh, we laugh, with a will, in the beginning. But it's always the same thing. Yes, it's the funny story we have heard too often, we still find it funny, but we don't laugh any more.
(Pause.)
Have you anything else to say to me?
NAGG: No.

Samuel Beckett, Endgame