The best quote out of part 2 of act 1 in "A Very Potter Musical". This causes Ron to call Ginny, who greets an asian girl as Cho, a 'racist sister'.
Three girls: Cho Chang, happy happy new year, Cho Chang, gong hey fat choy...
Ginny: Cho Chang! Mah name iz Ginnee Weaslee, it iz verie nice to meet youh!
Asian: Bitch I ain't Cho Chang