A nigger 2nd grader comes home from the first day of school, and says to Mammy:
"We dun say-ed da affabet, but Ah could only get to E."
Mammy responds "Dat's cuz yo black."
Next day, nigger comes home again:
"We counted to a hunert in class, but Ah could only count to 10."
Mammy: "Dat'z cuz yo black."
Next day, nigger comes back, more excited this time:
"We took a shower after gym and muh dikk was bigga den dem white boys'! Iz dat cuz Ah'z black?"
"No, dat'z cuz yo 38."