The Farelly brothers actually went for a degree of subtlety in the the midst of goodness knows how much daftness - and have been slated by many a reviewer who just doesn't get it. The rubber hand gags are seriously bad taste, and thus funny: as is the sex scene with Harrelson's landlady.
Rany Quaid plays.....well a mormon Randy Quaid really, and that does let things down a little - but he means well and one forgives his flaws. The woman (sorry name escapes me) is a decent "straight" actress, and is certainly pleasant enough to watch! Bill Murray however, is truly a revelation, he plays someone who you love to hate. He apparently insisted on buying his own costumes for the role. The comb-over hairstyle is superb - and makes the film for me. Don't pay any attention to lukewarm reviews....this film should be viewed as a great critique on a certain type of mid-west culture, with lots of poo, sick, wee, and goolies jokes thown in for good measure.