'They kill themselves, you mean?' said Bod. He was about eight years old, wide-eyed and inquisitive, and he was not stupid.
'Indeed.'
'Does it work? Are they happier dead?'
'Sometimes. Mostly, no. It's like the people who believe they'll be happy if they go and live somewhere else, but who learn it doesn't work that way. Wherever you go, you take yourself with you. If you see what I mean.'
Neil Gaiman,
The Graveyard Book (p.104)