People wince when something is in bad taste. They laugh when it's funny. If it's too dirty or wrong, they won't laugh. But if it's a big, dirty, smart, funny laugh, they love it.
“Imagine a civilisation that's way in advance of us wants to communicate with us, and assist us in our development. The information we provide to them must reflect our highest aspirations and ideals, and not just be some crazy person's bizarre politics or religion.”