<human>: Can you give me the gist of the text in a nutshell?

Out of context, that sounds horrible-which is exactly why IFU, because I said it out of context!

 Anyways, I have three little brothers, one of which is named Nicholas aka Nick aka Nicky (when he was much younger). Nick went by Nicky until he was probably 12 or 13 years old, and that's still what the majority of my family calls him because that's what they've been calling him his whole life. My other little brothers and I used to talk in this baby-type voice when we were younger all the time, which really annoyed everybody except us. In this dialect, Nicky's name was pronounced "Niggy" (being young we had no idea what that resembled and I doubt my parents wanted to explain that to us at that age, figuring we'd drop it eventually). Anyways, this afternoon me and Nick drove to Wendy's and when we got out of the car I started giving him a hard time and talking in  that forgotten baby voice. As we walked into Wendy's I started saying his name over and over..."niggy niggy niggy (...)". I looked up and saw that the man at the cash register ready to take my order was African American and did not look at all pleased with what I was saying. It was at that instant that I finally realized I was a childhood racist.
<bot>: Pronounced my brother Nicky's name "Niggy" and the African American cashier at Wendy's probably took a shit in my cup of chili.