Read your bible: "Miriam and Aaron spake against Moses because of the Cushite woman he had married, for he had married a Cushite woman...and the anger of YHWH was kindled against them, and He departed..,and behold Miriam was leprous, as white as snow..." (Numbers 12:1, 9-10)

Cush was an African region inhabited by very dark-skinned people, today known as Chad.  The above might suggest that some of these hateful, melanistically-challenged individuals should watch for falling body parts...