Professionals will listen to recordings of their own voice to remove regional accents.

I got rid of my Southern accent when I was working in film and TV, because there is a lot of anti-Southern prejudice in that industry. I put it back somewhat when I got out and went home, and realized that Alabama really is superior to all other regions of the US.

When my dad would work with yankees, he turned the drawl up to 11. They assumed he was literally retarded and would say things in front of him that they never should have. He always thought that was funny.

Southern Whites have IQs above average. Southern negroes bring the average down. It's the same with quality of schooling. Most yankees are not smart enough to understand that and assume that a low average IQ/low average school score in the South equates to everyone being stupid and uneducated, and not just that there are segregated nigger schools full of 75 IQ monkeys that massively skew the average.