Klinger [singing]: Nobody knows the trouble I've seen...
Hawkeye: I know!
Klinger: Somebody knows the trouble I've seen...
Hawkeye: I know!
Klinger: Somebody knows the trouble I've seen...
Klinger [singing] : Nobody knows the trouble I've seen...
Hawkeye : I know!
Klinger : Somebody knows the trouble I've seen...
http://www.tv-quotes.com/shows/mash/quote_28860.html