An elderly Zuni man is having serious problems sleeping.  He falls asleep fine every night, but tosses and turns and eventually is woken up halfway through the night by disturbing dreams.  The insomnia is taking a toll on his health and driving his wife crazy too.  She persuades him to see his GP.  The doctor asks him the problem, what is specifically about these dreams that is so disturbing that he can't sleep?  The fellow says, well, the dreams are just so surreal - I dream I'm an inanimate object, it's so weird that I'm up worried about it all night.  One night I dream I'm a wigwam, the next night a teepee - wigwam, teepee, wigwam,teepee."  Doctor mulls it over, then says 'you know, I've read an article in a recent APA journal about this and I think I know what's wrong with you - you're just too tense!" (You know....two tents!)