Another one (which again I can't find audio for); right at the end of the A side of this: http://www.discogs.com/Obey-Vol-1/release/323410 there's a Manc voice saying "Ahh, you've been 'ad off, you knob. Deal with it.".
I've probably never listened to at least 90% of the vinyl I own through to the very end, as when I'm playing them, I'm generally mixing. But from time to time, when I'm doing something else, I'll just put tunes on to listen to and it always surprises me when there's a little bit at the end I never knew about.
If We Ever has that nice sample about immortality and how he "yearns for this".
End of the Bloodhound Gang album of Hurray for Boobies has (after 20 or so tracks of silence ) and choir woman and man singing Hurray for Boobies and intemitently laughing.
But my favourite is Queens of the Stone Age's rendition of Feel Good Hit of the Summer that has the lyrics replaced with laughing. Sounds much better imo http://www.youtube.com/watch?v=4CwBjn3uVvM