Ooh, good one. Poly people are all middle class or upper-middle class. All poly people always do full disclosure. Galaxy Pkwy, Ste. Feel free to add to it.
Poly people are just in it for the sex.
Polyamory has nothing to do with sex. Poly people never cheat. Poly people within a relationship are telepathic. Poly people all have group sex. Poly people are all promiscuous.