howl hollow howl
I'll try to limit it to three or four players in the future.
Yeah, that's pretty much the established consensus.
Try my four-player partnership variant some time (http://www.boardgamegeek.com/thread/5843). It's my group's favorite way to play it (and one of our favorite four-player card games, along with Die Sieben Siegel), and the simple rule addition adds more options and suspense to the game.