Ellen Tabby, an African-American, has worked for Binge and Purr, a cat food manufacturing company, for several years.  Tabby reports to Stephanie Schnauzer, who is white. Tabby and Schnauzer argue like cats and dogs. Tabby is convinced that Schnauzer’s poor attitude toward her is rooted in the fact that Tabby is African-American.   Although Schnauzer directs…