Pigs

I've read that pigs are most intelligent animals in the barnyard. (Except for the humans, I guess.) I once saw a thing on TV--on the show Real People, maybe?--where a guy had his pigs trained so that they wouldn't start eating their feed till he'd said grace!  And wild pigs are probably even smarter.

Pigs will eat anything, which must be why Jews and Moslems consider them unclean.  I've also read that they don't naturally overeat:  famers have to thrust tons of food in front of their snouts to get them to do so.

After seeing the miniseries Lonesome Dove, I read the Larry McMurtry novel.  On the second page or so Gus McRae says "You pigs git!" and reading that, I immediately saw Robert Duvall in the role!

There's the Warner Brothers cartoon character Porky Pig, who stutters. On Youtube you can find a home movie the cartoonists made for an office party, where carpenter Porky Pig hammers his thumb and keeps stuttering, "Oh, son of a b-b-b-..." Finally he says "Son of a gun!" points at the audience and says, "Ha ha, you thought I was going to say 'Son of a bitch,' didn't you?" One of his funniest cartoons is Porky in Wackyland!

When I was little I read a comic book where Uncle Scrooge was up against a pig character from the Klondike called Soapy Slick, where saving his fortune came down to a big dogsled race. (I recently read that this character was based on a real guy called Soapy Smith!)