Funny / The Money Pit

  • Walter reacts to the latest catastrophe by completely losing his mind and cackling like a madman for a good half a minute. Bonus points for Tom Hanks's belly laugh sounding a lot like a donkey. Seriously...how Shelley Long kept a straight face through this part (see it at the 2:20 mark), settling instead for a "Dude, Not Funny!" look, is beyond human comprehension.
http://tvtropes.org/pmwiki/pmwiki.php/Funny/TheMoneyPit